It's so easy to neglect those things, and we had every budgetary reason in the world to neglect them.
But if just one of those systems had been working, can you imagine how difficult it would have been to make it stop working? It would have required years of planning and operations. And to make all four systems fail? That would require a mammoth effort over decades.
Ohmigod! They're right! It must have started just after Nixon was forced out!