Maybe this is a question for Yang Jun. Yes energy can be moved into an opponent or for healing purposes. Yang Jun only said that there is a mistake in terminology. Look at what I wrote, there is no denial of "chi" or the result of moving it. And what he said gave me MUCH to think about.
My understanding of his words (he did not say this directly) is that the word "chi" is often used for something else as it is very recognizable. He did not deny effects only the word as a description of what actually passed from ones hands or whatever into the opponent.
Most Daoists say that we are born with a limited amount of "Chi" ("life force"), when used up we die. We do not really increase the amount of Chi we have but refine it through Taiji, meditation, or active Chi gung etc.(not enough time nor is this the place to go into all the pre/post birth chi/life force/essence etc. here) This thought is far older than Taiji. So if one is able to project our chi in healing or in combat and does it often in practice we would hasten our deaths would we not? Chinese Dr. would have a fairly short practice. Does it not make sense that the energy we release is the result of moving chi as opposed the chi itself? And though the "chi" is responsible it actually is not the "it" or "product". Still he cautioned me against doing too much Fa jing.
Again I say Yang Jung did not deny the end result of moving chi, only that another "energy" was involved in that end result. This really is only a matter of words in the end. What one calls what really does not matter. His viewpoint I was not able to explore more and do not know where he learned this, from his practice, or a teacher, or a physician, but this view goes along with some fairly ancient teachings and opens up a number of questions that are very interesting with out changing anything you, me, or anybody else believes in or what our bodies experience.
I hope this clears up any misunderstanding.
most respectfully, and excuse the spelling I am pressed for time.