Truth is, 13, (1) by the time a coach gets to that level, he's probably so engrained in his methods that he's not interested in new things, (2) probably not many coaches are aware of it since it is just an obscure PHD dissertation by a former NAIA coach (3) Talking about it to an old teammate of mine who is a D-1 assistant for many years, he really believes in it and says it's an ego thing with coaches.
After about 30 minutes of observation, my son's HS coach was convinced and continued to teach the method. I work with kids shooting the ball and they don't like it at first. I just ask them to give it 2 weeks and shoot 200 a day this way and if they still don't like it, then go back to their method. Have NEVER had a kid after the 2 weeks want to change back. And, as far as hitting the occasional bad golf shot, I didn't say this process would turn a kid into a 100% foul shooter. Just improvement. You might try it (with an open mind). I was skeptical at first, tried it and it really makes a difference.