The real patheticness here is the desire to call a riot with a more politically charged term "coup attempt", just because it pleases you to further vilify your political opponents.

I watched the whole thing live. It was messy at times, but it was clear as day that the mob didn't have neither a plan nor a command structure. Once they got into the chamber, they just chatted with guards! Or, in that shaman's case, just blessed everyone around.