Now a days most of the sports we know are really entertaining but at the same time a bit agressive not for the audience but the players.
In the article it is mentioned that in the past the player (any sport) had to keep on playing no matter what but now it is necesary to have the doctors permission to keep on playing.
I think that is the perfect option for both players and audience, because as an audience it is not nice to see soemone getting hurt in a serious way, and as a player because maybe they are earning money for the game, but if they get hurt really intense they might die and won´t be able to play once again in their life.
It is true that the more aggressive the more entertaining especially for men that are really into this kind of excitment, but I prefer having someone healthy on the field than someone famous but dead.