Letting a wrestler off their back, straight to the neutral position is defined as unsportsmanlike conduct. The match should be stopped and an unsportsmanlike point awarded to the wrestler who was on his back. One point for the escape also.
Beeson: this used to be the rule, but it was changed sometime between 2003 and 2007 (not sure when-I was on a coaching hiatus). I spent a long time this year trying to find it in the rule book and it is no longer there. That being said, I don't think there's anything more unsportsmanlike than cutting a wrestler from his back to his feet. I wish they would put that rule back in the book.