Throw Sir Purs ass out on the field and make him earn his money?
I see your point though. The stadium is notoriously famous for being filled with so called fans telling other fans to sit down when cheering. I myself have experienced it. We all have, the Huddle is filled with stories about it.
Would be incredibly difficult. The only way I think its remotely even possible without the screen prompt would be double sided signs held up on both sides ... one for the keep..one for the pounding.
Only thing I could logically think of that would get it cut would be Covid. The plosives and sibilance...The amount of spit flying from "K" and "P". In a crowded space with that many mouths opening in unison might be problematic considering the current situation.