[...] almost all of them are nearly unusable for a GAME. like is the player supposed to wait while the girl walks some stupid corridore? like have you no idea how little patience people have for pointless waiting?
Yeah, there's a reason why few games have animations outside of sex scenes, and it's not because animations are hard to do. Constant animations are just a big "no" outside of realtime 3D games, and something fully AI generated can only works as Visual Novel.
Having one punctually, when it add something to the game, why not. By example the animation of a opening door when the MC, and therefore the player, have no clue what's behind, can add a bit of tension. Or an animation can add a bit of dynamism to picture a long travel.
They can also works when they happen in the background. Like by example the door a the room opening when you're going down on your sister. Here too it can add a bit of tension or dynamism. But it's background scenes, so not what is seen in his trailer.
But having them from starts to stop just doesn't works.
You don't control the pace at which the player will advance. Therefore either you loop your animation, and it will feel weird, or you switch to a static once the animation is finished, and it will feel even more weird. And, of course, there's still players that will goes faster than your animations. Them will either have to wait before it finish, what is annoying as hell, or miss a part of each one of them.
and voicing is such a terrible idea to begin with even if it's done by real actors. the robotic AI speech makes it so much worse.
I disagree here, or, more precisely, I'm less categorical.
Some peoples like their games voiced, even on the adult gaming scene. But most dislike it, yes. They play those games as pure entertainment, or to fap, an prefer to listen to their own music while doing it. Having voiced characters would mess with this and they shut off the sound from the game.
it seems like you've seriously misunderstood what the platform is. games are interactive, these clips are not.
They can be, to such extend, but the works behind would be overwhelming.
Interactive games that are well done slowly but surely lead to scenes what can easily have half their dialog lines, and character reactions, that will differ depending on the previous choices. What mean that each clip have to be split in small extracts that will all have to fit with all the others.
This being said, there's another issue in top of all those ones, the lack of readability of the characters' mind. It's more or less excusable when the VN is done with steal renders, but not when it's animations or movies.
What is the first girl we see in the trailer thinking about? At 0.07 she's smiling, then change her mind at 0.09, at 0.10 she's thinking and at 0.12 when the scene end, she seen to regret her smile...
And the girl at 0.28 and following? From her dialog line, and after having watched the trailer, she seem to be a detective. Why is she so deprived of all expression?
And, a constant with AI generated content, way to many characters are looking straight at the camera...
The trailer is good, and it's fascinating to see what AI can do, but it's not something suitable for a Visual Novel. At most a Kinetic Novel but then, as you said, it's nothing more than a movie.