The chat bot just assumes it's in the context of active war. Not that there isn't even a war. There are no active combatants or "effectively surrendering" combatants. There is just people accused of a crime they may, or may not, be guilty of.... and missiles.
Even if it was in the context of a war it would be a crime, but there isn't even that context. It's murder, arguably worse than war crime, it's crime, and one of the worst crimes there is.
What does it say about stealing boats? Again without the context of being in a war...