Her case has nothing to do with GPS.
Sense of direction has to do with the ‘mental map’ that a person has formed of the area.
Sense of direction won’t get you to find your way in Boston, especially at night.
Think Boston's bad? Try some of the older parts of European cities. They can be a real maze.
You're right, but the question the article is asking if you read further is can an over-reliance on GPS produce people like her, unable to navigate on their own?
At any given time, one has to select from ~10 possible routes based on expected traffic levels. I still remember one place where traffic would back up a few cars waiting for traffic to clear so one could make a left turn to drive about a half block down a one way street the wrong way to make a good connection with the rest of the route.