Until of course tricky weather or something else happens, and suddenly, they don't.
http://www.npr.org/2011/07/26/137646147/the-gps-a-fatally-mi...
First the link you have is about people taking outdated/wrong maps on trips, not about technology that might disappear due to conditions.
Second 'when people....' you just made up to prove some weird point.
Why are people going to suddenly go crazy because there is 4G access everywhere? We all know batteries run out and things break. Normal precautions are all still needed.
Because this technology might allow silly people do something silly in a different location we concentrate on that rather than all the lives it will save?
That's when the fun begins.
But if you feel the need to attack someone you'll most likely never see or meet as being "smug" for tangentially pointing out this fact (ironically backed by exultations of your own vastly superior experience in both technology remote environments) -- instead of minding whatever work someone is presumably paying you to be doing at this time, as we speak -- well, do what you need to do, I guess.
Rescuers had no trouble locating these idiots: http://www.nationalparkstraveler.com/2009/10/third-time-was-...
This is a very real, big and growing problem for wilderness rescue services: http://www.nytimes.com/2010/08/22/science/earth/22parks.html