That map of Europe is hilarious, hehe.
Besides, come on, the writers will sometimes make deliberate mistakes, surely, but those will always be made to prove a point, and they'll be less arbitrary. This looks like a blunder of people who simply didn't know any better....a classic case of didn't do the research. I don't see the point of fucking up trivia for no good reason. But that's just me. Other people will be bothered by other things.