If they're so confident that copyright wouldn't apply to them, they should train their models using Disney content and set a proper precedent instead of using content from smaller artists.
>>wildpe+(OP)
I think they might get into trade mark/trade dress issues. There are few enough Disney locations and characters that some form of at least pseudo-overfitting would probably be a problem.
>>astran+05
There you go. Try and generate a image of Mickey Mouse with his mouth closed using Stable Diffusion and you will see a verbatim image of him copied straight from Disney.