In order to stop there you have to slow down before release.
Thank you so much for posting this. I was beginning to think I was the only person on the planet who realized this. lol
I see many pitchers, especially at the older levels with this "follow through" and now I realize someone is teaching Yikes.
Some of these pitchers have decent speed and I watch them pitch and just think
1) imagine how much more speed they would have if they weren't stopping their arm right there
2) how terrible that must be for your arm to try to be picking up as much speed as possible only to abruptly stop there!
Ouch. I disagree with the "it won't hurt them part." Sorry