> Knowing that people get into this instinctual "fight" mode frequently during police encounters, to the point where they'll exert themselves to the point of exhaustion and beyond, I do wish police had a greater duty of care standard to check on people and assess for medical emergencies during such scuffles.

Indeed. And we should treat forceful restraint as a potentially lethal move-- since we know from the statistics that it is-- and emphasize using other approaches where possible.