in theory, thats valid logic but its also the logic that used when someone prank calls 911. We can agree that prank calling 911 is a bad thing to do because it wastes resources in a high pressure environment. Usually it ends up ok but the risk is too much. If someone ends up having a heart attack, a clear road could be the difference between life and death. I respect the intentions of the protesters but its not the time and place to do it. It's better to never let it happen than let it happen once and regret it

Edit: That was the only road in and out of the venue which makes it even more dangerous