You will recall late in the game Quaynor backed back and took a mark in front of Fritsch. Mathew Lloyd said that Fritsch could have really hurt Quaynor and LEGALLY, but chose not to. He was almost critical of this.Before they outlaw Bruzzy's smother they'd surely have to ban the flying knee to the back of the head as part of a marking contest. Far more "careless" and far easier to avoid. And when they do that the game really will be on the way out.
Exactly the situation you are talking about.