Also, unpopular opinion:
Trad publishing's preference for easily marketable tropes makes the use of AI easier.
Multiple people I know have been told by publishers that they need to "describe the manuscript in three common tropes" or "as a combination of two popular books/movies" in order to be marketable. The more formulaic something is, the easier sell. They were told to tweak stories to fit into a trope.
This, #AI can do easily. But it's not even an AI problem. It's a marketing problem.