No, but likely trained in the protocol that as long as one is acting according to the letter of the law, versus its intent, then such actions will be considered justified. And or he was not trained in real life scenarios how to recognize an actual threat from a real one, and how to handle the latter from dogs (most at least) and even some humans without using weapons. And or was not in good physical and mental shape to so do.
The America we grew up in is gone and not coming back. An unexpected benefit of moving overseas is: most police around the world are normal and do not robo-shoot. Leaving the Divided States, the danger of government execution of you, your loved ones, and your dog, being one phone call away, is lifted off your shoulders.