I am a reader. I want AI to create better writing. If it creates better writing than those of humans, so be it, it means I gonna read books written by AI.
The idea of AI writing books better than humans is alien to me, because judging good writing involves interpreting the emotions and ideas the author is trying to express through their writing. AI is not trying to express anything, and doesn't even have a mind to express.
We have many decades of proof that humans write good books. I am yet too see there "better" writing you are referring too. I am not saying it doesn't exist, I am simply asking for proof. I cannot find any.