People are kinda unreasonable. As long as AI isn't used strictly for commercial goals- it's totally fine and acceptable. Sure, they do have a patreon, but first and foremost it's presented free. It's just people can't think outside of the box and washing unreasonable things with real problems together. Even if I get hated for my opinion.
I despise using AI for commercial purposes like advertisements or elements in professional movies and shows, but using it for your own project or to get inspired of it, even in your game or your own animation partially is TOTALLY fine. The tool is never the problem, it's the human behind it, anyone can kill with a brick too, afterall.