We have no clue about what Gregory's "mental issues" were as a freshman in high school, or for that matter, KJJ's. We don' know how wild KJJ got either, we just know he was publicized getting caught in the dorm once.
I think the poster's comment is legit concern, and a general statement - if a parent, mentor, coach etc steps in when they see or sense things are off kilter with a kid it is never a bad thing. Regardless of money, famous-ness etc.
You're trying to make an argument about something that just wasn't implied.