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to translate, the first post is him discussing using AI animation software to try and get some creative inspo for idle animations he can use for the game, but struggling because the AI he chose is rather incompatible with his art style and also isn't meant for NSFW stuff in general so it gets kinda botched. The small animations you've mentioned are some of the sample works he's released to backers combining his AI tests and his own editing, but since I'm not a backer I can't say anything on how they look.
For the other posts, this is what he has to say on progress according to DeepL again:
Text → Pretty much done
Illustrations → Still not done
System effects → Finished most using placeholder art (stick figure sprites), but test play is super surreal
Of course he wants to finish the illustrations more, but "the sheer number he needs to draw is massive, so progress is slower than expected." He does also find himself getting too aroused while drawing and decides to jerk off, but has since come to the realization that he busts harder when getting off to other characters not in the game like Lanpas or Ivy (? Not sure who this is, original JP is イビー) so he's thinking he might be in a rut from drawing the same characters constantly, hence why he took a break to lake the Lanpas video. He closes by saying that he really wants to get it done by the end of the year, but thinks it might be tough.
As a recommendation, I'd suggest translating the posts on your own as well to try and get a better picture of the full situation. This is just my summary of an MTL of both posts, so there's sure to be some nuance lost between my own summarization and the translation itself.