Comment by jiggawatts

Three availability zones provides no protection against three ballistic missiles.

Region pairs are similarly totally ineffective against a mere six rockets.

No current missile defence system is effective against ballistic warheads reentering from space at hypersonic velocities.

Colocating thousands of businesses and hundreds of government agencies into a handful of hyperscale data centres is the text book definition of putting all of one’s eggs into a single basket.

If Iran’s attacks were more coordinated[1] they would have taken out all zones of every Middle East AWS, Azure, and GCP region. On top of the obvious direct damage to GCC nations it could have very likely permanently damaged the reputations of public clouds, possibly causing trillions in indirect economic damage to the United States.

[1] The theory is that the Iranian regime prepared for decapitation strikes by splitting their military into about thirty cells that can act independently.