According to article: "The discussion quickly focused on the use of digital currencies for remittances, a classic scenario that highlights bitcoin as a cost-effective alternative to current international money transfer channels." So the discussion were only for the remittances. This is to few according to my meaning about the role of a cryptocurruencies in the economy of a country. And this meaning is not mine originally. But even me had this idea within myself without knowing. I saw this thing written by one my friend here in this forum in one of my threads.

I think that the mission of the digital currencies is way more big. They can (if it will be possible and if it will be agreed by the scientists of the economics science) replace the national currency of every country. There are are to many question mark to be resolved before about this initiative and the Authority of the country which will execute this option will have to many things to decide and to resolve (because it will be an hard experiment) but I think that this option have a future. And if it will be executed it will be the best possible (or at least better than the actual) one for the economy of that country.