Dr. Yang has an understanding of what sort of research is required in order for a modality like taiji to be accepted by the mainstream medical community; like it or not, it's the way thing work in this day and age, and Dr. Yang has made significant inroads into the PM&R / PT community as a result of his work, which includes being able to get reimbursement for said modality by insurance companies and Medicare. Instead of being a smart-asz, know-it-all, maybe you could try to appreciate what he is trying to do from a slightly less condescending perspective.