I guess that doesn't matter in games where the world ultimately doesn't matter, it will be better procedural generation, but personally I adore games where the developers actually put effort into designing a world that is interesting to explore, where things are deliberately placed for story or gameplay mechanics reasons.

But I suppose AI could in theory reach the point where it understand the story/theme and gameplay of a game while designing a world.

But when anyone can generate a huge open world, who really cares, is the same as it is now, gotta make something that sticks out from the crowd, something notable.