For hikes in dry southern California mountains, I've never had to use my knife to get my Bushbuddy going. but it tends to be quite dry here.
When I lived in Oregon, it was a different story. Other than in the dead of summer, wetness was always an issue, and I used my knife for getting to dry wood on more than one occasion.
How wet is it likely to be where you'll be going?
BTW, I love using a little wood stove, and do so anywhere it's allowed. The stove itself is very low weight, and the fuel is weightless! A bit more fussing than a cartridge stove, but still quicker than you might think.