I can't help facepalm when I read news like this. The value proposition of blockchain technology, combined with proof-of-work, is distributed trustlessnes. Why

I can't help facepalm when I read news like this. The value proposition of blockchain technology, combined with proof-of-work, is distributed trustlessnes. Why would a national, centralized issuer need anything of this sort? All they need is a PostgreSQL database or, preferably, letting their citizens use whichever medium of exchange they prefer, rather than try to pretend that there isn't plenty of foreign currency that their people would probably prefer using.