Oh, I'm sure there are some fans who genuinely believe it.
It's completely possible for better tech to fail by being prohibitively costly or have low availability - but neither apply here. This time there just aren't enough people that think it's an 'astonishingly good' anything to succeed. Shouting a lot from positions of supposed influence (like say, news site editors) is no substitute for willing customers.
I'm not sure Andrew is ready yet to accept Microsofts Win8/10/WP strategy has nothing to do with what we need, it's a cynical strategy to impose what's good for Microsoft and only Microsoft. They couldn't push a phonified OS on desktop users so now they'll try it the other way. Eventually they'll either die or do the right thing and use the right OS on each class of device instead of the jack-of-all-trades cockup we're seeing now.