Cops have an overwhelming need to feel totally, I mean totally in control of the situation. Their chief tool is fear and intimidation.
Shooting your dog right in front of you is great way to intimidate and not cause riots cause you shot a person. This has become SOP I’m afraid. Next is black clad commando cops rappelling from helicopters onto your roof, flash burning a hole in and and jumping in and putting a blood stained canvas bag over your head.
I have long maintained that nowadays most cops are selected for hiring on the basis on their level of high aggressiveness and that largely accounts for the problems we see in this and other areas.