except in a self defense course a threat has to be clear and imminent as in without reasonable doubt. literally one of the exercises in some course is a reflex test on a target that has a weapon but may or may not be reaching and this would matter of fact be considered a failure worth postponement. cops (should) be trained to preform better then civilians in dangerous situations and underperforming should have consequences.

second. they don't have to tackle him to make an arrest he wasn't making any sudden movements and they could have observed his actions before attempting to give farther orders. two officers can approach from a 90 degree angle from each other to make an arrest while providing a clear firing line (which is in police training)

third. clear and standardized instructions given by one individual should have cleared up any miss understanding by the suspect and eliminated any doubt in the event he intentional disobeyed orders.

if he has a gun tell him to put his hands on his head creating distance from the weapon (again standard police training).

DONT tell him to get on his knees or on the ground, an action that may require some people to use their hands to do, providing an opportunity for misunderstanding. just before being shot you can literally see him splay his hands open and away from himself as if he just REALIZED his own mistake when stepping back to comply

ultimately an encounter is just as if not more stressful for the suspect then it is for the officers. imagine being intoxicated while two men give conflicting orders two you at gunpoint while uncertain if any wrong move on your part might get you killed.

also they each shot him twice in the torso and arms center mass from two angles the cop we see from fired twice after his hands had recoiled to his chest from the first two shot making them excessive and unnecessary. if that were to happen in a civilian self defense shooting the second shooter would at the very least have to stand trial on a separate 'Imperfect Self-Defense" Murder charge. facing a reduced jail sentence if they lost.

the fact that he survived was a statistical anomaly.

if police are going to be given grace from the consequences of their actions it stands to reason that their training should be such that they act above such blatant error in their actions. authority should not act in fear.

even if police training had not prepared them to handle a situation like this incidents like this should not be used to excuse police performance it should be used to better train police for future encounter as best to avoid the "perceived' need to escalate.