I relegated the specialist tinder to the car. I'm carrying duct tape, a candle, paracord, chapstick, paper around the band-aids if I need tinder.
The little LED torch lives elsewhere in my kit. I use it all the time - but it's not a survival kit item because the batteries don't last long enough.
But yeah. The more you know the less you carry. I might do an article on what I carry "survival/utility" wise when I fly places. The needs are quite different since the risks are different. And, sometimes travelling with only carry on luggage really restricts what you can carry.
Keep up the blogging!