So we had this in the Florida Keys with AT&T who is the service provider of our area. I live 2 miles out on a peninsula of an island named Summerland, anyway I bought my house and AT&T assured me that I could get DSL but fiber would not be an option. I knew it was copper all the way to my home so I figured it would be the case.
Anyways, I buy said house AT&T comes out and tried to get DSL working, and the lines have been so patched and spliced that they cannot even get 1mbps, so they basically tell me I am screwed that it would not be cost effective to run new copper down a 2 mile stretch and that my only option would be to pay (or band my neighbors together to pay -- All 2 of them) for them to string fiber the whole way. I think it would be something like 70k.
2 Months later Hurricane Irma hits and rips down every poll down our street, and AT&T is forced to restring the whole street due to the fact that they are legally required to provide phone service to every customer in their "exclusive" area or they loose said exclusivity. Fortunately for me they opted to string it with fiber, and provided fiber to the home.
My point is, I don't see how allowing these "exclusive" coverage monopolies does anything but harm the consumer. I imagine a community based provider like the one in the article would be met with a host of legal challenges here.