Oh you can't trust the FDIC they are government insured. And governments collapse all the time. I gave an example. Like a I said there is only one safe place for your money. Thats in your own private bank that you build and maintain yourself.
When was the last time the FDIC failed versus the last time an online storage vendor folded?
Personally I think the risk that AWS fails is remote, but if I were to store a bunch of data with them I'd most definitely make sure that I would not be dependent on them. It would be a convenience at best, but never a dependency.