So both literally and figuratively
The same can be stated about most DAZ, Koikatsu and RPGM games I've seen on this site. Like you have the generic park, house and stores that you see in a multitude of games, the same characters/models including same penis/vagina.
I've seen certain characters and sceneries in like 20+ games... Then there's games with the same characters with minor adjustments to their face or hair but it all boils down to being extremely similar to each other.
AI-artstyle can be similar but wildly different as well depending on your input. It's very unlikely you'll find two devs that use AI art to have the scenery or characters look exactly the same even if the games are similar in setting.
Personally I don't really care what brings in money or not and how much they earn by making these games. If the
story sucks neither of these types of games would be good, regardless if one takes 1 day to render everything you need and the other takes 5-30 days. If a person has a great story in mind, but is bad at artwork AI is one of the tools to bring his ideas to life, you could say "Find another person that can do the renders" but you would have to rely on another person and trust them enough to get their end of the work done. If for some reason the person doing the rendering can't continue, you're screwed because you can't continue your game because you would need to find somebody else to do the rendering, worst case scenario the game is abandoned. That's not even speaking about creative differences and the time it takes to go through all the nitpicking over the art and how the scenes are set-up.
Objectively/subjectively bad art, generic characters and generic scenery is not necessarily a deal breaker if the story- and character development is well done. I've played a bunch of games with meh art but the story itself was good so I kept playing it. Whereas I've seen games with (very) good art, be atrocious because the story was bad or riddled with simple spelling mistakes and formatting that you could barely grasp what's going. Some games were so bad that it seemed like it was machine translated from a different language.