Finding a single scapegoat for a single incident when estimated spectators numbers are 12-15 million per year and poor behaviour driven by television broadcasting has been going on for decades is just a distraction from the elephant in the room. The huge money making event cannot really be run safely.

It's a start. Far from your "scapegoat", this nincompoop with her sign was obviously culpable. Start punishing more idiots who do shit like that, and after a whle you'll have fewer idiots who do shit like that.