I have two grown and very successful children. I wouldn't presume to tell anyone how to raise children. To this day my wife and I have absolutely no idea what we did right and what we did wrong. It is more of a mystery now than it seemed to be at the time.
I suspect most of us parents feel that way, which makes it all the more funny when Loren tries to tell parents what they should or should not do
I will also note that the OP author is working from a skewed database. He claims to see a correlation between "helicopter parenting" and the mental health of the older teenagers he treats; however his data group consists of only older teenagers he treats. He has no insight into well-adjusted teenagers and young adults who may have had what some people disparagingly call "helicopter parents".
I also think the label becomes (like so many other labels) less descriptive of the person it is applied to and more about the bias of the finger-pointer.