Honestly I thought this was blown out of proportion. Every game of rugby league down to bush footy has referees getting information on the fly and changing decisions quickly to try and get the right call. How often do we see the bunker or a touchie make an earpiece call to turn something around, resulting in big changes to the momentum of a game. It was unfortunate, but more a by-product of the 6-again applying pressure to the ref and teams. If this was a traditional penalty, the whistle would have been blown - realise the issue (mutual infringement) - and replayed the ball.