All this talk about blade tips resting on springs or touching the inside of the blade well..... Not that it is necessarily a good thing, but seems to be an extremely common design for a lot of the traditional French, Spanish and Italian folders both friction and spring design. Even Opinel blade edges touch the inside of the handle. I suppose if you collect these types of knives, it just goes with the territory and if you're not okay with it, may want to look elsewhere.
The solution to preventing dull tips is the addition of a piece of matchstick under the kick area, or a strip of leather or cork under the area where the contact point is, combined with easing the blade shut. Not exactly technologically advanced, but neither were the originals. That's part of the charm for me. After these 'fixes', I don't notice much of a problem, but considering many of them are also made with what modern collectors would consider inferior steel, it really doesn't make much difference.... Easy to sharpen as well!