I think the challenge comes down to does the person making the game have a style that they are shooting for/ want for their game or are they just using whatever they think will be cheapest/easiest. I think the biggest problem of AI art, aside from the rampant theft problem inherent in training an AI data set, is that the vast majority of people are using it because they think it will be easy/low effort, so their games look low effort. Same, though, with a large selection of KK games or HS games, or even a lot of Daz games.