Seen rugby league players with their cauliflower ears? or heard them speak through their fractured larynxes? It's not overly pretty.
In all seriousness, I don't see a problem with the rule and my impression was that the umps interpreted it so as not to pay a free to a player who ducks into a tackle or initiates the contact anyway.
Lol.
I know this was tongue in cheek anyway but the majority of cauliflowered eared ‘league’ players are rugby Union players.
And their ears come from scrummaging, not from anything to do with the general running and tackling.
The ones with broken larynxes - your Darren Lockyers, David Barnhills, Billy Moores: it’s from an attempt to tackle an opponent and getting the ball carrier’s elbow to their throat.
In Lockyer’s case it was even attributed to the fact that he spent most of every game screaming instructions to his teammate.