After they’ve been shot, lethal force has already been determined to be necessary. Cops don’t stop until they stop moving or they’re making it very, very obvious they surrender. (side note. Having something in your hand is not justification for lethal force. ‘I thought it was a weapon’ as an excuse has worn too thin. but they’ll say other bullshit too like, ‘they had an aggressive posture’ and ‘were verbally combative’. )

Also, people typically fall back on their training in stressful situations, and they’re taught to shout things. like “show me your hands” … a lot. they may not even be entirely aware of why they’re shouting it. or even what they’re shouting. (Cops have been known to yell some freaking dumb shit after shooting people. You see the videos of them yelling “Get on the ground” when the dude is already… on the ground? just saying)