Since modern technology helped us to make our life easier for people to get their information and location, if the satellite had a malfunction or some sort then anything that uses GPS would become useless. Also, a map can be reliable from time to time when the GPS does not work and if people who rely on a GPS the most would have some trouble reading a map.
Since the early centuries mapmakers have always drawn out the map for people to us, but as technology is improving hand drawn maps are being replaced with more direct pin pointing system. The global positioning system people help people get to their destination quicker than before. Although satellite navigation system has changed the old way of map making, but as times goes on maps are going to be different than before, not only will map shows the location on earth but somewhere beyond