I've said it before, but I still think every weird or bad decision made in the early Discovery episodes goes back to Bryan Fuller, and the farther they've gotten from his contributions the better the shows has gotten.
I don't know about that. For one thing, his original plan was to do a seasonal anthology where only the first season was pre-TOS and subsequent seasons jumped forward in the timeline with new characters and situations. It was his highers-up that insisted on sticking with the original time frame. So we don't know what his real intent would've been. Also, we don't know whether the problems came from his ideas or from how other people tried to interpret his ideas after he was no longer around to do it.
The one that I really don't get is the Klingons, I don't understand why he was so insistent on making them so unrecognizable. It seems weird to me to take one of the franchises most iconic aliens, and then change almost everything about them, to point that they are practically unrecognizable.
It always amazes me when people forget that
the exact same thing happened in 1979. Every single word you say here could've been said by fans about the TMP redesign. And you know what? The franchise survived. Fans got used to the change. They looked different, but they still
acted like Klingons, and that was what mattered.
As for why the change was made, it's obvious to me. Makeup technology advances over time. As it does, prosthetic makeup designers are able to create more elaborate creatures, to take their creativity further than their predecessors were able to. If TOS's makeup artists had had the budget and technology of TMP, they would've made Klingons more alien to begin with. If TMP's or TNG's artists had had the prosthetic technology of DSC, they might've made
their Klingons more alien to begin with.
Plus, of course, different makeup designers have different styles. This is an artistic creation, and artists are entitled to bring their own design sensibilities to their work. "Aliens" that are human actors with rubber stuck to their heads are not something that can be taken literally. They're constructs of the imagination, so there's nothing wrong with letting artists reinvent them in their own ways.
The holographic communicators felt like a really weird thing to add to the show since we never really saw that kind of technology until DS9, and even then it only lasted one episode. I know we had the Rec Room in TAS, but this kind of two way communication in rooms outside of the holodeck felt way to advanced for the TOS era.
The Making of Star Trek from 1968 actually said that the
Enterprise had holographic theaters that could play immersive 3D movies or visual "letters" from home. So the concept was there during TOS. It's not that the tech wasn't supposed to exist in-universe; it was supposed to be there all along, but they just never figured out a way to depict it in an episode.
The Spore Drive is another weird choice, if they were able to come up with something that advanced in the TOS era, you'd think they'd be a lot farther along with their engine technology by the time we got to TNG. Even if that specific design was top secret, you'd still think their overall engine technology would farther along almost 100 years later.
You could say the same about numerous other technologies that were featured in one episode and abandoned, like the soliton wave or slipstream drive or quick-cloning or the like. It's an implausibility, but a common one throughout the franchise.
Incidentally, what does any of this have to do with the novelverse?