Author kind of glosses over this, like it's the setup to the point. But it's obvious that THIS is the point. The government did the hard work of running 25Gbit-capable fibre (4 of them!) to each and every house, and the ISP just has to run (25 * NumHouses)Gbit-capable fiber to the POP.
In the United States, which has 250x the land as Switzerland but only 30x the population, running fibre to every house is therefore 1/8th as economical. We have bigger problems. Is Flint, Michigan going to get fibre before they have safe water?