I seriously doubt Mack is dead. He may be possessed, but we didn't see him die, so that means he probably didn't. Raina, though, is at real risk -- anyone who's that certain that she's worthy ... isn't.

While I get your point, MAOS has 2 black characters in the ensemble cast, plus 3 Asians (counting Raina). Plus, all the baddies are white males, so that ought to count for something. :)