Nothing in my reply could be considered spam, except maybe for the fact that your post I replied to was a few weeks old (sorry about that!). But I digress; if you want my point, here it is:

AI cannot be the final tool for all creation because it cannot account for culture or people's lived experiences. For commercial/mass-market art this doesn't matter much: that kind of art is all based on endless focus group testing with the intent of creating the most widely appealing and inoffensive content possible, and AI can already do that much better than humans. Like you said, when presented with 3 variations of an idea, a user can easily choose one of those and continue to iterate on that idea until it is the most technically pleasing to their brain. An AI, with enough iteration, could make the most conventionally "perfect" radio hit, the best MCU superhero movie, and the most "beautiful" painting. But high art is always informed by history, culture and the individual perspectives of those creating. A computer could not write lyrics from To Pimp a Butterfly or Drogas Wave because a computer cannot parse the material conditions that justify the existence of those albums. An AI could not generate the ideas behind Dark Souls because an AI can only iterate on ideas with guidance by the user, and the user will only guide those iterations based on things that they want -- and Dark Souls was something gamers didn't know they wanted until they played it. Now does that mean AI can't assist in the creation of high art? Of course not, that would be an absurd claim, and creators are already using AI to guide their creations in novel ways. To call AI the final tool for all creation implies that at some point AI will make every other tool for creation obsolete, which will never happen. While AI will most certainly run most of the commercial world, there will always be a market for art made by and for humans. There's a reason many people still prefer traditional hand-drawn animation even when digital tools can, in theory, accomplish everything traditional tools can and more.

I'm no expert on the matter, though. If I'm misinformed on any of this feel free to correct me