Good. The burning were done specifically to incite hatred and create social turmoil, for the explicit purpose of turning Muslims and non Muslims against each other. Much like free speech does not cover threat or calls to violence, stopping these burnings stops these bad actors while leaving your right to free /speech/ unaffected, so if you want to criticise islam and Muslims, you can still say whatever you want about them, so any claims about free speech are kinda moot.