Players have been told those bracelets are illegal from the beginning of the season. The coach is asked before each game if his players are in the proper uniform. Refs routinely go amongst the players before the game to inspect. The player knew it was banned. Proper penalty!
I am not saying that we didn't "deserve" the penalty, I was just commenting on the irony of an "unsportsman like" penalty when the kid is just supporting his brother. And the sometimes unwavering "rules are rules".