Most people don't have combat background. They come in a range of IQs, a range of behavioral disorders, of intoxication of various means, of absurd beliefs and paranoias and irrationalities and mental health disorders. They are unpredictable and unreliable and don't use their turn signals let alone follow spot-on perfect form in an unexpected situation with adrenaline pumping.
As a result, almost everyone shot by police will have done something to "justify" it by the standard of behavior you have here. Since police usually are called on someone who is engaged in somewhat unsavory behavior (usually drug related,) it's really easy to paint the shooter in a negative light. A lot of people respond to a shooting incident with - "another lowlife, gangbanger, or meth-head, who cares?"
With cops on a hair trigger primed with videos of trained killers ambushing fellow police, any incident where a police officer gets scared for any reason could lead to your death. What this video and incident shows is that this is still true for your average Joe with no drugs and no reason to be connected to the police in any way. This is no less true for many people who were shot and killed as the result of a traffic stop or a drug bust - they didn't necessarily deserve to be killed, their death is no less tragic - it's just less evident.