Poor old Barrett the gift that keeps giving.....he also handed the Boks their win last year. But I must say I have sympathy with him today. This was a goal line situation which is much more akin to stopping a moving maul than a tackle. Hooper was barging for the line, Barrett sealed it off by driving down into the player. From his angle, given how low Hooper was, how could he have failed to contact the head.
You see this time and again in these goal line stands and it's never even penalized. If the French jerk hadn't called it, nobody was going to mention it....not the TMO, not the rabidly biased Ozzie commentators.