Needle-Free Acupuncture is the process of clearing the areas of congestion within the meridians and balancing the Qi without the use of acupuncture needles penetrating the skin]
all in all and as a summary, the needle-free acupuncture such as this particular example, http://www.curezone.org/forums/fm.asp?i=1233341 (which is definitely a far better option than epidermic / syringe injections - http://www.nbcnews.com/id/23070759/#.WWr2eFK575d (please refer to the related video - which may be deleted anytime), together with the other bodily acupuncture points, may just potentially bear immeasurable and invaluable therapeutic and curative medical benefits to the mankind, especially the poor and needy ones - http://www.curezone.org/forums/fm.asp?i=1673263#i , and of course especially and particularly when they (the other acupuncture points other than the specific Hegu acupoint) are carefully explored, experimented, observed, studied and applied with extreme precautions.
Whilst as a rule of thumb, there are simply no absolute certainties in medical sciences, theories & principles especially when it comes to effective cures and therapies for certain diseases.
And of course, only the final positive curative & therapeutic results & outcomes brought forth & produced would matter & be relevant.