Correct. I doubt these folks needed to be evac'ed. At least from the glimpse of the neighborhood I saw. I will leave a caveat that there may have been more off camera that wasn't shown. However, that still doesn't support the removal of guns.
Sounds like a gun grab, pure and simple. I would love to know what they are telling people when they take the firearms from them (IE, what they need to do to get the firearm back ETC.)