We know there was no weapon present now. That information was not known by any of the responding officers. Look at the Castile shooting. If they tell you to stop reaching, you should go ahead and stop reaching. The officer doesn't know that you're pulling your pants up or reaching for your wallet.
If you have a rifle pointed at you, all the more reason to not reach for anything.
You're right, the more that I look at it now, it's the citizens who should have the nerves to look down the barrel of multiple loaded weapons while drunk and terrified and make completely reasonable decisions.
*huffs bag filled with own farts*