Honestly everything else aside the AI slop is just killer, a breathtakingly bad idea for almost any creative work not founded around it.
Even if the art style transition was seamless - and good God it is not - people aren't going to be as interested in a creators 2nd hand AI produced content over their, you know, actually original content. Their die hard fans most of all!
truth, it's the combination of huge hype plus epic fail that makes this update a true trainwreck:
1) Highly anticipated dual-route update announced two years ago had fans chomping at the bit
2) Literally one actual sex scene, and it was "meh"
3) Repeated scenes with bizaare fluid drinking fetish subplot no one wanted
4) Most of the characters sidelined
5) Neither route appealed to its audience
6) Every character lost their personality and became a boring cliche, except the New Character we didn't really need
7) Mostly scenes of teasing shit that is actually a regression, pacing and story-wise
8) Eyes Wide Shut "big reveal" was not only obvious years ago, but basically a cliche at this point
9) AI generated art, even if theoretically feasible, was just so poorly done that everyone looked like a low resolution Akira-blob stuck in the Uncanny Valley
Last one's the killer, because everything else is just window dressing, but the art makes the game.