Er... yes it is; goblin hand bombs, explosive traps and other blasts scattered through the game deal force damage in the same way, and as you agreed previously, they shouldn't.
I can accept the nautiloid tanks being potentially magical in nature, as spelljamming ships are indeed powered by arcane forces... though we don't know what the tanks actually are - they're unlikely to actually BE fuel if the ship is powered by arcane means... that situation, in a nautiloid is all handled by the spelljamming helm, and powered by the brine pool. Still, there is at least a possibility that the contents of those tanks are actually stored magical essence in some way, and not simply alien fluids - I don't think it would make puddles on the ground if broken normally, if it were raw magic though; they read in all other ways as 'mundane' alien fluid. Ultimately, though, I'm okay with it for the nautiloid tanks, because they're mysterious enough that it can be explained, but they are a symptom of a larger mistake that shows through in other more obvious places.
