If it was a privatized public service then the network would be owned by the municipality and maintained by a private company under a contract which is put up for bids every few years, in the same way that the roads are owned by the municipality which puts private contracts up for bid to do road maintenance.

Privatization works when the government retains ownership over the infrastructure and never signs a contract for longer than ten years. Anything else is almost certainly corruption, and nothing in government works when the government is corrupt.

2) Private enterprise is a different concept from privatization.

3) I don't believe it's mere coincidence that everything the author likes about US infrastructure is privately supplied, while everything he suggests is "humiliating" is publicly funded -- do you?