You're right, this story makes very little sense. Any unofficial business dealings the North Korean government does will be very limited anyway, and the arrangements for that have likely existed for a long time already. Governments don't need cryptocurrency to do under the counter deals, never have and never will.
If one assumes the North Korean government are just making small amounts of money using ETH for the fundraising (which they could sell, unlike any ICO token), then it's a mystery how this story even got out (bearing in mind the small amount of people the North Korean government can trade with). If they traded some ETH over the internet for fiat, how did the leaker of this story discover that the fake ID they used was a front for the North Korean government?
Very bad journalism. Why are you posting poor quality journalism that even you think is questionable?