good lawd your're a verbose one intcha?
you write like someone who does it as a profession- legal/ journalist or academic? or "not even close"?
extended deescaltion fits into no model of violence I can measure against any personal experience of mine unless the "attacker" really had no genuine malicious intent to begin with
if you dont know him, he is shouting and moving in towards you, you need to "go"- simples.
People are waking up to the snake oil which is a good thing-all I can say is stay wary and stay critical
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“One should die proudly when it is no longer possible to live proudly.”
Nietzsche