I'm not frustrated, I'm at very low risk of being shot by police. Situations where objectively "the suspect clearly and obviously attacked police" rarely occur outside a vacuum. Life is messy, life is unpredictable. In every police shooting video I've seen thus far I could understand how the police justified using their weapon. In all but one video I could see how people took exception.

One trend that I've noticed in the videos I've seen is that the suspects tend to be very resistant to the officers. This alone doesn't justify being shot, but it escalates the situation significantly. In some its hard to tell if they are fighting officers or just trying to protect themselves.

In my opinion, the exclusivity of their message limits how much change they will affect. From what I've seen they will only assemble when a black person has been shot by police and there's room to question their tactics. It's their right.