You said — “In this mismatch the fired coach continued a full court press and fast break offense, grossly exacerbating the difference.”
As I remember it from my younger days, the coach would send in the second string, when the lead was far enough ahead. That would give experience to those others....
Yes, this was an egomaniac wanting to demolish an obviously overmatched group of kids. We SHOULD protect kids from such adults. I played football for some hard nosed Texas coaches, that would kick your backside, cuss you out, and work you full pads in 100 degree weathert, but they would NOT do what this coach did.