I didn't see the play so I can't comment on this particular instance. But all in all, I love the rule. I'm so sick of watching these guys showboat in the endzone.
Act professional and like you've done it before. Hand the ball to the ref, high five or chest bump with your teammates (who by the way, probably are also responsible for you being in the end zone) and go back to the sideline.
Everyone should have to watch a highlight film of Walter Payton and how classy he was on the field, espically after he scored.
And yes, I am a crotchety old (well, maybe middle aged)fart.