After recovering, they will probably feel silly about having brought cell phones and no matches or lighter. Too bad they could not rub their cell phones together to start a fire. Perhaps cell phone companies should start providing a flint edge option for helping travelers in need, when a lifesaving fire is needed.
Ironically, the higher up you climb Borah, the better chance there is for cell reception, via line of sight with towers above Salmon and Ketchum since the mid 1990s. Probably even a few more by now.