There's the law and then there's the reason for the law. But, I think that "qigong" is just too broad. If it means regulating who can perform "qigong" in a clinic or hospital, okay; that sounds reasonable. But, that seems like a situation where some form of payment is involved. I have no idea how standards could be derived or enforced. However, the reason for the regulation makes sense.
Otoh, some laws are designed by people just to prevent others from enjoying themselves, or because they are perceived as a social, cultural, or economic threat. I.e., the laws that are mechanisms of control.