There are many bloodless coups that are also military coups [1], the possibility of using a force has almost the same power as using a force.
Revelotion != coup.
Coups is done by a small but capable force, they would need to take both Capitol and Pentagon at least (and I mean not just shoot everyone there, but persuade those in control to give it up or turn them).
How do you envision those that raided capitol could take power of US? All they could do is just sit there and wait for special forces shoot them one by one.
Coup wasn't even considered, most probably what they did is plant malicious software on laptops/servers there and I think the real threat will be seen only few months later.
I think we can all agree that if Trump succeeded, a large number of people would call it a coup and they would be right.
1. https://en.m.wikipedia.org/wiki/Nonviolent_revolution#