Obviously, this will take off only if there is a need for it, just like anything else. If Governments keep censoring more and more of the Internet, people will gradually move to this type of networks, and as scale is built, services will start appearing on them, too.

What you're saying is also a typical "the incumbent's product has more features than the new disruptive product", but that usually doesn't stop disruptive products from taking off, because they fill a different need, and they're much better at certain things - in this case at ensuring you don't get censored, that your data is protected, and that you can be anonymous.