This is in such stark contrast to Russian soldiers, who capture and disarm Ukrainian soldiers, who have surrendered, and then shoot them. Yes, not all Russian soldiers, probably a minority, but still, there are now several documented cases (and almost certainly many undocumented).
The world could probably benefit from some sort of new convention establishing protocols for surrender to drone.
Right now, it's kinda ad-hoc, but if this is the way the war is gonna be in the future, you don't want to place soldiers in a position where they can't accomplish anything and it's just the protocols of war and lack of established surrender convention that causes them to be executed.