Dawgduck,
First, I do not wish to sound cynical regarding your son's recent success, second to me, seems like a rush to get back before his senior year is over, get a better college opportunity, and seen by scouts before the draft. I understand this happens sometimes and there is success immediately, but some problems develop down the road, specifically shoulder issues. I think what also is important is that the coach who is coaching the TJS pitcher use good judgement. That's a HUGE factor to consider. What I find strange is the amount of throwing he is doing just returning.
I would never doubt Dr. Andrews, however, to my knowledge and that may not be much, most TJS pitchers not only need time to recover from surgery, but time to correct mechanical issues made that may have caused the injury in the first place, which is why it may take 12 months or more until you see a pitcher on the mound. From what I recently read, is that for a position player, rehab and back is 8-9 months, pitchers always need more time for recovery even when feeling well. If this program is and has been proven to be successful, why aren't more using it? Wouldn't one need data to see how the pitcher does in the future with shorter time than one with longer time in rehab?
While we all know that some things work for some, for others it doesn't, this fast track program you are suggesting that is avaliable online may not be the answer for everyone. I see you already have some asking for it.
If I had a young player who might be in this situation and read this I would be thinking, hey I can get my player back up and running in 6-7 months after TJS so he won't miss opoortunities. Each player and his family needs to take time to research rehab programs, discuss it with the doctor and the person doing the players rehab before they decide on what is best for them.
JMO.
Best of luck to your player.