I certainly agree that the risk was low. Still, low risk is not no risk.
I don't think it was too much to expect that the Indian Ocean nations would have augmented their weather tracking and early warning systems for monsoons and other tropical storms that hit their coasts with a similar warning system for a seismic event.
Perhaps it would not have changed the result even if they had. But it frosts me that we in the United States plan for it and other nations, for whatever reason, are not expected to.
Oregon and Washington are at high risk for a catastrophic local tsunami at some point in the hopefully distant future.
The USA has to have the tide gauges on buoys for tsunami detection along our coast.