Honestly, this is going to seem ridiculous but probably not any more than the original penalty applied to Van Rooyen.
If the penalty stood for this incident, then, in an instant, 75 % of all actions on a football field become a potential source of a suspension for every single player in the comp.
And the next logical step would be to allow only one player to go for a mark to remove the possibility of any injury to any player. Perhaps the single player allowed to go for the mark should be the one who first calls out " IT'S MINE !!! "
Any other player attempting to compete for it concedes a free kick and a 50 metre penalty.
This might not be so far from a probable outcome as people might think
With the AFL as it's currently run, anything is possible