Not true. 1- He is unarmed, and not a threat. Although he has not officially surrendered with his hands up, he has taken a passive non threatening stance. He is no threat to anything and shows zero hostile intent.
2- if the decision is to still then deliver lethal aid it should be done in a manner to not create any more trauma than required. Yes the footage is out of context but even in this short clip the time taken for the drone to crow over this human being before killing him is cruel! It is a war crime and is unprofessional at best.