The regulations were good but they were not enough; people were shocked and dismayed, and turned that into action.
When you think about how, in the context of the appalling footage from Haneda, no one on the Airbus died, remember that. It was not (only) a miracle. It was the result of disciplined investigation, training, engineering, information sharing, and worldwide cooperation over decades.
So, okay, maybe it was a miracle. But of a fundamentally different kind. /fin