I've been in dust-ups both as a Soldier and a Cop. BIG difference. ENORMOUS difference. Hand to hand as a soldier are over very quickly. You either make your kill or you are killed. No fancy stuff. RESTRAINING somebody otoh is a real bastard. To really survive the terminal hand to hand, one has to have an extremely harsh attitude.
Yeah several videos showing police can take more time in eliminating their enemies than soldiers get to do.