I agree that not every trauma/bleeder needs a tourniquet. I've never used one.

But, I bet most folks haven't had the same combat conditions, where there isn't just 1 patient at a time, and there isn't an entire ambulance and fire engine team reporting. Usually, it's 1 medic and a crap-load of casaulties happening all at once. He can't spend 5 minutes with each holding pressure, and he can't have the battle buddy do it for him - someone needs to be shooting back.