It'd be pretty hard to test in a meaningful way, but I'd be curious how big the impact of AI art is on a game's initial perception compared to human-made slop such as asset flips or a lot of the mobile market and compared to human-made ugly games like Cruelty Squad or Don't Stop Girlypop.
Basically, define how much the humanity is important, versus "prettyness", versus dislike of AI for indirect reasons.