Nob, responses like these are precisely why this site was founded. We sought a place where anyone can submit materials and receive full and in-depth criticisms. This is the only way of true progression and true understanding!
Now, onto your critique itself... I think that you raise a lot of good, strong points. I think that the video neglects a lot of aspects of Parkour, but I do not believe that the video was intended to say, "This is the end-all, be-all." Rather, it is designed to merely point out, "This is one way of training, one way of approaching, one way of looking at things." I th...