you are both speaking too rationally. These barbarians play by their own rules and always have and will. Civilized laws don't apply to them.
I count six separate War Crimes associated with this story. Will the press ever mention that the enemy are War Criminals?
Human evolution works like this:
Step 1) Neanderthals make their genetic or cultural superiors sufficiently angry.
Step 2) Neanderthals are completely removed from the face of Earth.