It looks to me as a lame, beginners-style work-out when compared to other yogas. I know a few Tibetan and Indian yogas from lineage sources, and it seems the 5 Tibetans are sort of like the beginner version when you haven't developed the core muscles and flexibility yet. Sort of like what a physiotherapist would give as an excercise routine to a couch potato, not an athlete. The exception is the spinning posture, which is a bit different. Of course, I know of many simple practices that are yet very powerful, so I don't judge based on complexity or difficulty. Whats your view?