Singapore is a major point of failure in banking, oil and cargo.

I think we disagree on what "crippled" means. You have taken it to mean "no longer functions or exists", which I think many handicapable people would disagree with. It simply means that it operates at a measurably diminished capacity in some regard, which with the economy can have profound implications.

If the NYSE building were bombed on an operating day, it would absolutely have dramatic financial repercussions, and that market would absolutely be crippled. Would some simile reappear? Of course it would, just as government would reappear if a full capital building were attacked. But the impact would be major and it would be felt.