I completely agree with your take on it. And if the crowd had really had any intent to harm anyone the shooting of the girl would have set them off.
I suspect that possibility was part of what alarmed the cops but only momentarily. It quickly became obvious that the crowd was not going to attack them.
I agree that both the cops and the crowd were alarmed that a shot had been fired.
NO! Dude!
They are at the door and then someone yells “Break it Down!!!”
That is what set it off
8 second mark:
https://theresistance.video/watch?id=5ff63502f23a18318ceb28a7