If ya cant start a fire with the gas that is left in your tank after your motor quits then I guess its just natural selection at work... (sorry, couldnt resist).
Canister stoves work fine in cold, sure they work better if you keep the canister in your pocket when not in use when its really cold, but it only takes a little while to warm em up. My jetboil worked pretty awesome at 16,500' on Mt St Elias in AK. Try melting enough snow to make 2 litres of water with a sterno and a cup in a snowstorm, I bet it takes over an hour if it works at all. Small canister stove will do it in 10 minutes, even at -15C and blowing 50.
All the tampons and gas in the world can't help you start a fire if you have to try a self rescue and hike out on your own. Like a guy earlier said, "I want my survival equipment on my body, not 1000' down the ravine with my sled." Think about it.
As for canister stoves, I own several and have used them on 10 day 80 mile backpacking trips. I come from a backpacking and mountaineering background. I know the Jetboil works great. I'm not ignorant of their usefulness. Just because you love yours, does not mean everyone has to. Like I said, I'm contemplating adding my pocket rocket to my survival kit. I don't need to run out and drop $100+ on a Jetboil, my MSR Pocket Rocket will do just fine.