bad at doing anything with strong coherence

The ONLY way I found to have any coherency is making textual inversions and even there you occasionally have some weird issues. I think I fucked myself when I picked a character that has got a hairpin on one side of her face, I flipped the images to have more training and now she just occasionally has 2 hairpins on both sides, lol. Even if you work on coherency you're still having issues like that. I'd expect this to be worked on within a couple years, though. I expect something better to happen in terms of textual inversion also.

still super hardware/power intensive

especially the learning aspect of AI is super hardware intensive, let alone make a 30 frames movie which is 30 images it has to generate for 1 second...but I've not done a lot of animation with AI(yet).