I honestly wonder whether teams should accept conceding mauling tries like that. It then means that the opposition might miss the kick and you still have 15. Penalty try means a guaranteed 7 points and a yellow. I know it's contradictory to being a player, but infringing there just hurts your team. I'm not saying don't compete and yes you might still give away a penalty, but some are so blatant that you honestly wonder why players do it.