I doubt anyone here is giving "the mob a pass", speaking for myself I know I'd never be in their shoes, so there's no use in critiquing them. The whole point of the exercise is to help me have a better plan.
Agreed - have a better plan.
Was the protest group a mob? Unknown. I don't believe that anything besides the fence at entrance was harmed.
Did these two have "castle doctrine" laws at their backs? I believe that's also an unknown. Yes, the protestors were on private property but it was the HOA's property, not these homeowners. As far as we know, no protestor stepped foot on their actual property.
Did they have the right to brandish their weapons? I don't think so but opinions on this will differ. I don't think you should be pointing a weapon at anyone unless you intend to shoot - obviously not the case here.
The group had an objective target and it was not this couple's house. Did they make themselves a target by standing in the yard armed? Would the protest have simply walked on by had they never walked outside?
Yes, you can argue that they have the right to be in their yard and armed as well. Just like I've got the right to walk downtown during the protests, armed as well. The question is, is it a wise idea? In both cases, I think not.
With the lack of training that these two show, I can't help but wonder why they thought it a good idea to go confront the protest in the first place? They had to know that their actions would be confrontational, antagonizing, and escalating...so why make that decision?
No protest is going to be walking down my section of suburbia, nor mob, riot, counter riot, et. al. But, assuming that there was, I see no reason to make my house a target by standing out front armed...especially if any sort of violence towards my house or my neighbors or the people in them has not been done.