They don't really have time to do much of anything about it. Soon as the molotovs hit the ground the police declared a riot and pressed everyone east. If you are still in the street when the line reaches you, there's a good chance they'll apprehend you.

But I do agree, the protestors need to call this stuff out. If you see my other comment in this thread, the stream I watched this go down on, the streamer lied and said the police threw it then banned anyone who didn't go along with it. They don't understand people from outside their echo chamber will see this, and there's no way to stop us from seeing and talking about the objective truth of the situation.