The internet has made us lazy. Most of the time we can press a button and talk to much of the world, so why should we spend effort designing and building wireless adhoc darknets or even learning ham radio?
Of course some rare individuals rally enjoy tinkering with this stuff, but isolated people don't make an interesting network. A network of one is not that valuable. It's not just technophilic which is required, but people who are so extremely technophilic that they'll spend time and money building "unnecessary" rube-goldberg networks.
Unless we can find some real value for these kinds of networks outside of rare censorship events they simply won't be built.