Let's agree to disagree, because I don't wanna get into this for hours. I don't agree at all that TMP is some kind of event horizon of inconsistency after which Star Trek should be treated like a short story collection with a bare bones framing narrative. A 'complete re imagining' is hyperbole,
in my opinion. TOS didn't even have much yet laid down to re-imagine.
Ironically perhaps, fans did contribute to making Trek's mythopoeia more than it's actual creator - certainly people in the production teams, etc, started as fans. B-canon sources that thought about what the Federation actually would consist of, became accepted by the actual production staff by TNG. But I don't think that lessens the legitimacy of mythopoeia in the franchise at all. I roll with it, and that's an enjoyable part of the culture, not an aberration, to me. Probably in Homer's time, someone would ask "and what was Odysseus up to, during all this", and he might have written them a short story about it into his rendition than night.
Perhaps some people might think Star Trek fans aren't being literary enough, by holding on to concepts like canon, instead of just treating it like a Twilight Zone of unconnected stories, but who is anyone to say this? Your view of what makes Star Trek what it is, is just as subjective as someone claiming that canon is an iron-clad orthodoxy. Like I say, there will always be debates on how to fit visual evidence in, and I like it, rather than resent it. My position is somewhere short of canon being ironclad, but much more consistent than comics.
And
@BillJ - just to let you know, I had no problem with Yorktown and loved Beyond, so you assume too much.