Because it's largely unnecessary. If people were more willing to push for decentralized alternatives then world-wide outages would be a thing of the past, short

Because it's largely unnecessary. If people were more willing to push for decentralized alternatives then world-wide outages would be a thing of the past, short of the entire internet itself going down in which case you probably have bigger problems to worry about that loss of access to [x]. In my opinion it's not a question of if, but when we'll have our first disgruntled higher level employee manage to effectively destroy massive amounts of information and redundancies. As people become more and more dependent upon centralized services, the impact of this first 'digital nuke' will only continue to grow. In some ways the internet feels like we have created a machine that can take us anywhere in the universe, but we've decided that instead we'll use it to take us strictly between New York and LA - occasionally with some 'wild' idea to take us to London.