They're more likely to just be bad games, that's all. Not because of the AI but because of the mindset of a dev who cuts corners and does things without experience in that field.

Yes, consumers will judge the book by its cover if they see AI art. But this extends beyond AI art, to generative code-produced games.

And if a game is good, despite AI art, its reviews will somewhat reflect that (unsure how much negative review bombing AI art games get). And once a game has positive reviews it can see strong sales - that's currently a powerful driver on Steam.