Micro size and ultra lightweight are not concerns of mine. I'm really only a dayhiker these days and I don't mind a few extra ounces if that gives me a significant survival edge. I am not one of those "you can split a match into four useable pieces" kind of guy. You're more likely to find me carrying multiple match safes choke full of tons of matches. And a BIC. And a firesteel. And a small fresnal lens. I want that "survival edge" and having all these things might just supply that edge.
Micro size and ultra lightweight (within limits) do appeal to me as a climber and backpacker, but I agree with you about redundancy for making fire. The ability to make a fire, which implies at least some shelter, is critical to survival in the wilds under most conditions. If there are no serious medical issues, lighting a fire makes a huge difference - you will be OK.