The idea behind most dedicated self defense knives is that they are almost never used, so the odds of breaking a tip during those occasions would be fairly low - many self defense folks also will tell you that the blade steel is not as paramount as it should be ready, unused and sharp as hell when needed. the tip of a knife like the Matriarch might be more likely to snap on bone or similar, but for the kinds of soft tissue slashes it is designed for, it should be more than sufficiently strong.
Love and Fury,
D-FENS/Kris