"It's a peaceful protest as long as you don't engage with it". This is you. What actual reason is there for society to find this kind of attitude acceptable or compelling?
I think it's mistaken to compare the two rather than seeing one as an extension of the other. Police already have the tools and authority to police an active riot into submission. The decision to go easy on riots is a political one motivated by a desire not to jeopardize their current powers. This doesn't mean expanding their powers is necessary or desirable even if the courts are involved however.