Costs a lot of $ to protect free speech. Allows the police to have extra powers against unruly supporters and unruly protesters. Might open up federal funds channels too.
I’d rather state of emergencies be reserved for hurricanes though.
That said, I suppose it’s better to err on the side of caution.
Maybe this will convince 45 or Congress to finally add his group to the list of baddies. How else is a Governor going to shout loud enough for Washington to hear?