If you read the article, Fort Collins had to issue $143 million in bonds to finance the system. The US is enormous, and the cost to deliver fiber to everyone will be high (versus Europe or South Korea).

Arguably, as a muni utility, you don’t care about turning a profit versus Comcast and other for profit enterprises. And you have local governance over the infra and how it’s operated through local government. But it still takes a lot of effort; effort that can be distributed across the country, but effort that needs to be expended nevertheless.