I think it’s inevitable that an ending where most of the litverse characters are killed off and then the entire timeline unhappens was going to bum some readers out, and I find the vehemence with which others are rejecting the legitimacy of that response a bit weird. The ending the writers chose was one that was unusual for Star Trek in many ways, and it’s reasonable that different readers disagreed on how well it worked.
What I'm reacting to is not that people are bummed -- I'm bummed -- but to the idea that because the characters died, nothing they did mattered.
Obviously this is all about fiction and the stakes are pretty low -- just our feelings as fans. But, that basic idea feels like it's saying, "If someone dies, then they didn't matter." Which -- again, it's fiction. But if you were to apply that feeling to real life, that would be horrific.
For example: My mother suffered a stroke nine and a half years ago. After the stroke, she had to have numerous intensive medical treatments, including multiple surgeries. In spite of her doctors' efforts, my mother did eventually die in August of last year.
The fact that my mother was only able to survive for less than a decade after her stroke does not mean that the efforts her doctors undertook to treat her, or that the sacrifices I made to support her, did not matter. Meaning and importance are not nullified by death. If it were, there would be no point in doing anything to help anyone, since we're all going to die eventually.
So that's what I'm trying to push back against, more than anything else: the idea that the things the First Splinter versions of the ST characters went through don't matter just because they eventually died. Death is not the nullifier of meaning.
Yes, that's true. From a real world perspective for sure. But from an 'in story' perspective the events of Coda basically erased the entire timeline of the novelverse from TNG: The Genesis Wave, DS9: Avatar, Voy: Homecoming, etc. from existence. They now basically never happened in universe.
You're thinking a little too linearly.

They happened -- and like erased pencil marks under the new writing, you can still see that the eraser couldn't eliminate all trace of the old writing. The consequences of the First Splinter Timeline live on in the fact of the existence of the Prime Timeline. It's like the Prophets promised Kira: They will always remember the sacrifices of the brave heroes of the First Splinter. And so will we the readers.
One thing I would love to see is for one of the shows, Picard, Lower Decks, maybe even Prodigy, to give a nod to the litverse series. Maybe use a litverse character, or incorporate some plot thread or civilization. They don't have too certainly. But just one of those things that would be nice to see.
There have been some tidbits already. DIS S2 used a version of Control as their antagonist. Number One's true name of "Una" was taken from the novels, as were the names of a lot of the
Discovery bridge crew.
Lower Decks used the "sh'" prefix for the surname of the Andorian officer named Jennifer. The
Luna class originated from the novels and has now appeared in both LD and PIC. The MacGuffin ore that the bad guy on PRO is after came from the novels, as did the Brikar species.
That's what makes it so hard for me to rate this novel. I didn't like the resolution, but it wasn't a poorly written book. Not that it's the end of the world if I don't rank it (it's not like David Mack is anxiously waiting to see whether I see it as average, above average

), but I usually try to offer a ranking since it's a new book. I'll just have to consider it for a while.
*shrugs* At the end of the day, they wanted to write a book about finding meaning in the face of oblivion, about the idea that death does not negate purpose even when it is unavoidable. You can dislike the idea of ending with death, but death
is coming for us all, inevitably. We will all one day die, and everyone we love will one day die, and one day all life on Earth will die, and one day the Heat Death of the Universe means that all life everywhere in the universe will die. These are just inevitable facts of life. You can either avoid internalizing these facts (a form of denial), or you can internalize them and decide life has no meaning (nihilism), or you can internalize them and decide you will find or create meaning in spite of them (existentialism). The
Coda trilogy chooses existentialism over denial or nihilism.
As an aside I do have to admit I was surprised at how the Krenim were just eliminated from the story. I thought something was being built up after To Lose the Earth with the Krenim, and they are master time travel manipulators. I thought originally the Devidians might have been a false clue and we'd find out the Krenim were behind what was going on. But they were swiftly swept under the rug.
As I understand the situation, nothing was swept under the rug. The authors considered using the Krenim in
Coda before they were asked not to by, IIRC, Kirsten Beyer herself, so instead they constructed
Coda around the Devidians. There was no foreshadowing in
Coda about the Krenim, and any foreshadowing in the
Voyager novels was about a different arc that never materialized as a result of the novel continuity being nullified by
Picard.
I have wondered if there might've been other constraints on the project from licensing beyond what we've been told.
I don't see why there would be. The entire point of
Coda was to end the literary continuity, so why would CBS/Paramount care enough to micromanage things?
Dramatizing the literal truth of the First Splinter carrying the torch, and then being rendered superfluous and utterly destroyed by TV Trek seems like such a strange perspective to take, with no twist or anything beyond just "What happened to Star Trek in reality is also what happened in the fiction," that I've wondered if there wasn't some sort of condition that Coda was required to firmly establish the primacy of streaming Trek over the novelverse, and it couldn't just be a finale of a Star Trek story in and of itself.
I think this was just the authors wanting to do a story that gave a definitive end to the literary continuity, tied into the canonical shows, and which set its plot against the backdrop of inevitable death in order to dramatize the importance of finding meaning in spite of death rather than through denial of death.
I was definitely expecting something that was more "Star Trek Six" than "Blake's Seven."
I've never seen
Blake's Seven -- I found myself comparing
Coda to the series finale of
Angel, "Not Fade Away," in which Angel and his "Ministers of Grace" go up against an overwhelmingly powerful foe which they know will destroy them, but choose to do so anyway.
I just didn't like that they decided to erase the entire timeline from existence. It just made me wonder what the point was of all that happened there now,
What was the point of all those surgeries my mother went through? What was the point of me working a job I hated for seven years to support her after her stroke?
It was the right thing to do. That was the point of it all.
As an aside I wonder how New Frontier fits into all this now. It was kind of it's own thing, and thus far I haven't seen anything major in Picard that affects it. But at the same time New Frontier was nominally part of the ongoing litverse (I think an occasional mention was made of other things going on in the rest of the litverse, like the end of the Borg). I did notice the mirror universe Calhoun made a cameo. Though I suppose that's up to the reader. I don't expect we'll ever see a NF novel again so I guess it's up to the individual reader if NF still exists or if that was wiped from existence as well.
One of the ingenious things Peter David did was set
New Frontier far enough away from the rest of the Star Trek Universe, in its own isolated environment, that you can interpret it as still having happened in the Prime Timeline without it being nullified by anything in the canon (at least yet). As far as I'm concerned,
New Frontier happened in both the Prime Timeline and the First Splinter Timeline.
In fact, a very clever thing about the
Coda trilogy is that while it gives a definitive finale to the literary continuity, it also leaves the door open for things that have only ever been depicted in the books to still have happened in the canon. There is, at this point, no reason whatsoever to imagine that the events of the
Rise of the Federation series did not happen as described in the Prime Timeline, for instance. The events of the
A Time to... series and of
Articles of the Federation could so far (unless something something has happened in the last two episodes of PIC -- I haven't seen them yet) still have happened in the Prime Timeline. So could the events of the DS9 Relaunch from
Avatar through
Warpath. A modified version of the events of
The Sorrows of Empire and
Rise Like Lions could still have happened. A modified version of the Andorian reproductive crisis and Bashir's quest to rescue them and then fight Section 31 could still have happened (so far, at least). So far, there's no reason most of the
Vanguard series couldn't have still taken place. So far, there is no reason that most of Una McCormack's post-finale Cardassian arc, from
Cardassia: The Lotus Flower to
The Never-Ending Sacrifice to
The Crimson Shadow to
Enigma Tales, couldn't still have happened. (Granted, the events of
The Crimson Shadow would need to be a little different where they intersected with the broader events of
The Fall, but most of
Crimson Shadow was isolated enough from the rest of that series that it's only a few bits here and there that aren't consistent with canon anymore.)
Here, I'll raise you one better. Maybe it'll put your mind at ease a bit: Maybe the literary continuity we saw in every single book prior to
Coda actually took place one timeline over -- call it the 0th Splinter -- and that was virtually identical to the First Splinter, and the 0th Splinter is still continuing alongside the Prime Timeline. In fact, arguably I've got textual support for that idea, since
The Good That Men Do established that Jake and Nog survived into the 25th Century while
Coda featured Nog's death in 2387.
