Can't remember if I ever posted in this thread, but several years ago I had a conversation with one of the authors of this book and questioned him on several things. He said they first considered including a full chapter on their lineage and history, but ultimately decided against it because it would take the focus away from the content of their book (like rather than help validate it?).
The whole thing is laughable really, especially the photo of their "Shaolin Monk" in the back. It's a black & white photo of a white guy wearing like a Karate Gi with long 70's hair, doing a front jump kick so that his face is covered by his movement.
They should have decided against that photo, rather than that lineage chapter!