How do they select the "survivalists" and their support crew in HQ? Either milk toast relatives in HQ, with a strong person in the field, or the opposite. The weak get rewarded and the strong get penalized? Completely backwards. To win this contest, there just needs to be a halfway decent person in the field with a duress word, and 2 strong field craft people that know what supplies to send, and don't pull that person without hearing the duress word or the medical team demanding it.
Start everyone off with a full steel canteen, knife and fire starter. If they can't start a fire before applying for the show, they run out of clean water and automatically get eliminated. Drinking untreated water can have long term effects on the organs, so eliminate that from the program. A person wise in wood craft with a good knife and fire starter can make a shelter, traps, and spears to kill animals or fish for protein. They'll know how to forage. Over half of these contestants would starve in a grocery store without a can opener.
