Thank you for pointing out something I didn't know. That said, I do think there are some issues with it, just as you mentioned.

I think it's a simulacrum and simulation problem. I recently had a chance to teach some students, and I noticed their writing was starting to resemble AI generated text. The reason was that the AI was guiding their learning, and the students ended up picking up the AI's way of speaking.

Honestly, you can't rule out that kind of issue, and the homogenization of voice is definitely a valid concern too.

Opinions on what counts as "improvement" will vary from person to person, but I do think the problems you've raised can't be completely dismissed.

Thanks for the insight, and I'll take the time to read through the links you shared. Have a good day.