Thought and creativity won't be averaged away because human beings have a drive for these things.

That may or may not be true, but the expression of thought and creativity matters to transfer meaning. If you average that out, it loses momentum. Example: https://news.ycombinator.com/item?id=47346935. Compare the posters first and second, LLM assisted, paragraph. The second one is just bleak. If I had to read several pages like that, my eyes would glaze over. It cannot hold attention.