I feel like what you're describing is just marketing, in the sense of exaggerating the necessity of a product that works but which you really can do without. Or do you mean Gibson's products don't really work?
Sure, it's "just marketing," but it's particularly egregious marketing because it relies heavily on fear and borderline lies about his expertise. And he puts out baloney like the "CSPRNG" in the OP that's not even sound. You may note that it's been 5 years since he was notified of the flaws in it, but it's still promoted in exactly the same irresponsible way.