If current power plants get damaged, you don't need to send something up into space to fix or replace them. This is already going to be enormously expensive without the risk of putting equipment out in the open. Hopefully it's successful and more people will get involved, to lower costs.

But unlike operating systems, there is nothing tying down a business or other workgroup from switching advertising systems entirely. There's no real limit to the internet, so anyone willing to run new servers could start up a new service. Google may have the ability to bend its index behind the scenes, but if you even suspected it then you could stop advertising with Google and advertise your product or service another way. If you had misgivings with Windows but already had invested in software and service that is only good when running Windows, you could be SOL because Windows is such a large and exclusive entity which many other pieces of technology rely on.