in technique -- it's all about location. One is done for the benefit of the winning team, on the winners side of the field. The other is done on the losers side in clear view of the losing bench and grandstand.
Seriously, I don't believe he was trying to rub it in, and no doubt was just caught up in the moment. He just picked an unfortunate spot to display his excitement. If a do-over was an option, I'd say he would take advantage of that option.
My only reason for getting involved in this whole thread was because a poster called another poster out for "spreading lies" about the incident and told them to get their facts straight when, obviously, the accusing poster did not see what happened in front of the Kelly sideline.