That's like saying a ship sank not because of the hurricane, but because it was flooded and ended up capsizing. Sure, it wouldn't have sunk if it had stayed in port, but we still say the hurricane was the cause.
Saying the satellites were lost because of the geomagnetic storm could imply that the satellites suffered some sort of electronic damage. Which, as I understand, is not what happened. That is why the nuance here is important.
In your case, there is no other reason for the boat to be lost but because of the wind and waves.
So the difference is that the movement of water (i.e. waves) is implied in a Hurricane and that the atmosphere is expanding isn't implied in a geomagnetic storm? So your whole argument is based on our (meaning the general population) limited knowledge about the side effects of geomagnetic storms, while we do know about the side effects of hurricanes.
The nuance isn't that important. The implication that a geomagnetic storm can only cause magnetic/electric damage is just wrong. It's like implying a hurricane can only cause damage through wind and rain.
