Well, time will tell if it is genuine or not. At least the doctor convinced me and I'm planning to take my brother to the clinic to be treated.
Now, I agree with you that Western science and medicine are at many fields superior to that of the East. But even western physicians are convinced that Traditional Chinese Medicine works and in some cases where Western medicine fails, TCM will have effect. Many Western doctors now take courses on TCM just to know more about acupuncture, tuina, Chinese herbology etc. Now, Traditional Chinese Medicine is based on the Existence of Qi. So, if TCM really is effective, then Qi does exist. Furthermore, Qi has always played an important role in the Chinese martial arts, because Chinese martial arts are in fact a blending of classical forms of combat with traditional Chinese medicine. Therefore, Qi must be relevant for kungfu-training.
I am aware of the fact that there are many frauds out there but that doesn't mean all Qigong practices are mumbojumbo. There are many people in Taiwan who were cancer patients and they were all cured after intensive practice of Guolin Qigong.
By the way, in the Forbidden City Museum you can still see the first seismograph build by Zhang Heng around 100 AD. The Ancient Chinese were quite sophisticated but it's a shame that they did not made an effort to further development.