imo, it's a calculated decision by leadership. the purpose of the spectacle is to distract and deflect examination of leadership. to have this happen within the focal point of the spectacle invites examination of leadership, so it must be disregarded and the show must go on.

they don't even have the benefit of it being a moment hijacked by "terrorists" where they can create an enemy. it's just literally "this is how incompetent the people in power are. we will sacrifice our devotees for less than nothing." the longer the moment lasts the more dangerous it is.