Good point.

I've tested it by dunking it in water and running water over it. Yeah, it won't work if wet, but if I shake the water out of it, wipe it a bit on amy shirt, and then let it dry for a few minutes (5-10 depending on humidity) it works just fine.

I don't worry about the cold weather too much. It is easy enough to put it in an "inside pocket" for a while to warm up a bit before use.

I stow the lighter along with other firestarting gear inside a ziplok bag so it won't get too wet, plus I always carry a Magfire and matches in a matchcase too. Fire is just too important to count on just one method of starting. For that matter I EDC a BSA Hot Spark in my pocket too.