Even if something is AI generated the author, and the editor, should at least attempt to read back the article. English isn't my native language, so that obviously plays in, but very frequently I find that articles I struggle to read are AI generated, they certainly have that AI feel.

It would be interesting to run the numbers, but I get the feeling that AI generated articles may have a higher LIX number. Authors are then less inclined to "fix" the text, because longer word makes them seem smarter.