Nah man, "too big to fail" means a central agency is willing to bail out a failing entity. No such central agency exists for Bitcoin. It's the free market at its finest!
We should all be prepared for failure. But realistically the only thing that keeps bitcoin going is the fact that a community of people believe it has value. This same theory, reality applies to all currencies and things of value. As soon as people agree that it doesn't have value it will fail and that will be it!
I agree with this statement, it's too big to fail since many of us who actually have bitcoins keep bitcoins alive and breathing like a true digital currency. We too give it's value that's it's so high and the demand is so big. As far as everything goes, as long as it is still useful and very much growing everyday, bitcoins won't die flr a long time.