I agree with the caution if the move is not done in conjunction with a move to the back, that would be choking. The big problem I had with this call, is that the ref had numerous matches that day where kids hit that move and he NEVER called it and I saw some chins being pulled so hard the kids were freaking out to get it off. So consistancy on the refs part should have been better I guess.
When the ref stopped the move in the finals match, the ref basicly got in the wrestlers head and said he was watching for that move. The kids he wrestled was giving him the head every shot, but him thinking he was going to get a point deducted he didnt take it the remainder of the match and ended up losing.
Mike, I agree with you 100%, talk to the coach, not the kid.