Why check web content
Search engines do not penalise text for being written with the help of AI; they penalise content with no value of its own. A high score on an article that was meant to draw on first-hand experience or an interview is therefore a warning about the content, not about the technology.
The check is most useful where you do not write the text yourself: with external writers, agencies or guest articles. It shows whether you got what you commissioned.