The brawl started by the Muslim players was clearly outside the scope of those rules. In fact it occurred when the clock had expired and the game was over! The players were certainly aware that the game officials at that time had no power over them. There could be no 15 yard penalties and no ejections. Furthermore, it was the last game of the year, so there could be no suspensions for future games for the seniors.
Given these circumstances and the fact that badly beaten Star Academy could have reasonably expected to lose (it had won only two games in the last six seasons!), it's entirely possible that the end of season brawl was preplanned, perhaps for weeks. The fact that the opponent was a Christian school might well have factored into their perverse thinking.
Yup
Submit, dhimmes. We may not win the game, but we will win the war.