"Asking what a hurricane does to GDP is about as pointless as asking what a war does. Tells you more about problems with GDP than anything."
"Almost" because I think that second sentence should say "tells you more about problems with how people think about GDP than anything". GDP is just fine as a measure. It just doesn't measure what people sometimes act like it measures.
I just think it's an interesting question - what a hurricane will do to GDP - not a terribly important one. The question ignores virtually everything we don't like about hurricanes, after all!