I understand it make take some time, but some of the most popular indie games end up having very simplistic art which took very little time to make, as long as the general idea gets a crossed and the game doesn't focus on art or animation it doesn't need to even be good. Also if someone is using ai art for their game I would also assume it would be just practice code. Now all of this is pointless to argue about as the dev will change this before the game releases so theres that.