Yeah, I read a more complete article about the ordeal. At one point he said he drank his urine to stay alive which seems weird since he also discusses fishing. Whatever he was fishing in had to be preferable to urine! Of all the things he lacked it sounds like a lighter and a water bottle were the things he needed most (short of a compass, map & PLB, natch).
While it's true that you could lose your pack or other gear it's astonishing how many folks hit the trail without any gear at all! In the course of my daily living I rarely get more than ten paces away from a water bottle or other beverage container. I always have a cold drink sitting by my chair at home and most of the time I have a drink in the car (especially lately as it's been 90-100 degrees for weeks.
This goes doubly for when I'm in the woods! I can't fathom hitting the trails without a water bottle. My basic minimum kit is a water bottle bag kit with a 1 liter of water and a miniature version of the "10 Cs" in the carrier.
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“I'd rather have questions that cannot be answered than answers that can't be questioned.” —Richard Feynman