It wouldn't matter even if true. Reeves was the only person to initiate deadly force. Getting into a conflict, even picking a conflict, doesn't authorize the other person to shoot you. You only get to use deadly force in response to a deadly threat.
The statement I addressed was that reeves started the conflict.
I agree with your criteria, but one does not know the intent of an attacker. The safest thing is to think the physical attack may be deadly.
It is the attacker who assumes the risk. When the person grabbed the food and threw it, it is a guess as to what their intent is.