you have to be with drug fueled criminals-, one lapse in attention and it could be curtains- it’s for hte safety of everyone, the perp, the police and bystanders to hold them down mercilessly while they are raging on drugs, even if they don’t resist for a bit- that can always change in a quick hurry without warning
A blind man can see he was unconscious after a few minutes. The cop was doing stupid and let his attitude get the best of him. IIRC this officer had a pretty sketchy record. It was waaay too much and the guy died on him.