The key isn't that the "AI" writes the whole darn thing. It's a "get-out-of-writers-block-free" pass. I've successfully used chatGPT for exactly this process. I'm writing something — unique, by me! — and I want to link a few thoughts together in a succinct way. I outline what I want and ask the AI to generate some plausible prose.
I almost never use the prose word-for-word, but goodness is it helpful.