Without going into technicalities there’s the notion of reasonable force and proportional response and all that which is literally bound to the context of an event. But you miss my point; I’m not discussing the event depicted here specifically. I’m criticising the lack of critical thinking and openness to arguments. Reaching the conclusion that this cop mustn’t have punched that particular person for the exact context should not be taboo. We should be, in full understanding of the situation, condemning it.