"Fog of war" is meant to convey the confusion when you're in mortal peril and the fear is so high it clouds you perception of reality. Combine that with incomplete information, poor communication, differing perspectives, etc., and people make mistakes.

If you're all ganging up peacefully to whomp a small boat that isn't fighting back, where's the fog?

Show the crosshairs on the survivors. Explain that. You expletive nazi hegsdeath. Explain the targeting.

They were shooting at us! We couldn't see anything because of all the smoke from the cannons!

- Hegseth, probably

those boat attacks. Not one, and especially none who were directing the attacks.

The fog of war implies danger on the part of all sides. There was no such danger unless you were in those boats, frankly. The worst risk for those in charge is that someone in the officers' mess will overcook their steaks. This war is done by remote control.