Well, towns don't change location. So if it was merely outdated, at worst it wouldn't be on the map. If the map was wrong then there's no difference, but you should be asking why your map of choice shows a town 70km away from where it actually is.

Not even a little accurate. I live in the great white north. Most Canadians live within 300km of the 49th parallel. Once we take out this southern belt, it means you have a country the size of the United States with about 10 million people, so the distance between towns is much more than it used to be. Now with -40 winters, between temporary roads used for oil rigs, frozen lakes in which we use as roads, derelict towns that are now ghost towns due to everyone migrating to the city, defunct reserves, etc... A paper map made 10 years ago can get you killed just as easy as an iOS, Google, or Tom Tom one can. We frequently lose people to the cold all the time. My Dad lost one of his best friends and his wife last year, and they weren't using a GPS.