The one good thing I seen in the link was this particular hike was going to be an overnighter so they atleast had a tent and sleeping gear. Start a fire, stay warm and stay put. In all my times hunting the mountains I always made sure I had enough gear to stay overnight if I had to and I always had the ability to start a fire, it’s a life saver. If need be set a mountain on fire, they’ll find ya. OK maybe not to that extreme but a big fire works both ways.