As with the other slightly-differently-spelled Mark, I think you are making assumptions.
I also think Mark has done some valuable research. I've cited it before myself.
We are telic beings. We always make assumptions. Our assumptions in this arena are only as good as they can be realized through the tangible end-products of our martial arts training, thinking, etc.... When we can all be in a room together and test our theories out in a collegial manner, we can make some real headway in our training (theories, applications, etc.). Otherwise, we are left with our assumtions (Assume= "Ass" out of "U" and "Me").