Why?
Comment about the content, not the form.
This is worthy feedback to the author (and others), that writing with clear AI tells/register is so distracting that it takes away from the spirit and content of the writing.
Perhaps this is just the zeitgeist and in 20 years this is irrelevant. It’s relevant for whoever is writing now.
You can say the same about detecting grammatical mistakes: it's nice to warn the author, but please send them a private message, don't pollute the comments section.