I think I wrote this in an HN comment before, but knowing what I do about linguistics and people, I think some of the AI writing styles will be re-enforced and organically more popular even for human authored writing over the next few years. We're all being unconsciously exposed to those language structures and they will feel comfortable, normalized, and we'll be inclined to repeat them.
I don't like it necessarily, but that's the way it works. Repeat exposure creates that.