Can see coaches rorting it as mentioned above. Player pretends he might be concussed from hit to head by key opposing player at crucial part of game when it barely touched him.
You start to go down tricky paths when you try and match a player going off from a team for injury or concussion caused by an opposition player by also removing the offender as it is open to rorting.
Maybe if a concussed player misses the following week then the opposition player also misses the following week so the team does not get an advantage in the game, but even that can be rorted depending on the following week's game that a certain result is required. Also as we know some players have had multiple concussions and missed multiple week's so can be somewhat unfare to have an offender also miss multiple games.
Maybe it's something that will always exist due to the contact nature of the game and officials just have to crack down on high shots and suspend players until they stop going high otherwise they pay the penalty.
