I think he means it's not economic viable to the companies, however as you can see the Swiss model was defined by politics.
Even though, I agree with you it's possible, in my city the internet only got better when a monopoly was broken, and a state company decide to work in a new infrastructure, all FTTH, now I pay less than 100BRL for 300/150Mbps with that price 10 years ago it was only possible ADSL connections (25Mbps).
Now every major provider do have FTTH infra with great prices.
Even though, I agree with you it's possible, in my city the internet only got better when a monopoly was broken, and a state company decide to work in a new infrastructure, all FTTH, now I pay less than 100BRL for 300/150Mbps with that price 10 years ago it was only possible ADSL connections (25Mbps).
Now every major provider do have FTTH infra with great prices.