To make any protest have impact it needs to be unique, never seen before, we have seen walk outs, delayed walk ins, whistles, banners and mask, Just look at the one with the arrows pointed at the goal
The reason it made headline is because it have never been done before, also it is a fun protest which on to another point being a protest should not hinder other fans enjoyment of the game that dont want to participate. There for this fun ones kind of add to the spectacle