My daughter and husband are retired LEO's, I vote republican, respect my mother, help the elderly, and spent years as a volunteer firefighter. When I go to Baskin Robbins I order vanilla. You might say I am a bit conservative. However the thing that must be remembered is, the police are the enforcement arm of our judicial system not the punishment phase. Is running a shootable offense? Are you required to submit to everything a police officer requests? Did the man running hear the command to stop and why is he being asked to stop? As straight laced as I am, I still guard my liberties. You can not be stopped or questioned if you are doing something legal. I have no idea what transpired during this shooting, and am making no judgments.
And to answer the op's main question, yes there is now on the market a device that gives the LEO the option without complications. A device he wears on his belt can within 2 seconds be attached to his main handgun. When the gun is fired with regular ammo, this device absorbs the bullet and expels a large metal ball. This ball hits the bad guy with the force of a hard thrown baseball. After the shot the device is ejected from the gun and the rest of the guns magazine is ready to discharge with another pull of the trigger. This was designed to give the LEO the option of less than lethal force while still using their familiar sidearm, and transitioning from less than lethal to lethal is just a pull of the trigger.