[yosefk]

It's counterintuitive but less so considering that it's way easier for a human to draw something from scratch than to inbetween 2 key frames as well!

(I guess we're used to machines and people struggling at opposite things so this is counter counter intuitive, or something...)

Animation key frames are not interchangeable with inbetween frames since the former try to show the most body parts in "extreme" positions though it's not always possible for all parts due to so called overlapping action. This is not to say you can't generate plausible "extremes" from inbetweens; acting wise key frames definitely have the most weight.

AI being good at stills is true, though it takes a lot of prompting and cherry picking quite often; most results I get out of naively prompting the most famous models are outright terrifying.