What are you taking issue with in the section of the interview quoted? Is it Tissier Shihan's contention that there is no need to train Ki/Kokyu skills separately? Or do you have an issue with his basic explanation?
Let's to put it this way. If I didn't know who he was, and had no idea of his rank, standing etc, and I heard someone make those comments about ki/kokyu, I'd automatically assume he didn't know what he was talking about, or, in the worst case be able to do these things, as harsh as that may sound.
Since I've never touched hands with the guy, I won't really comment on that aspect.
Anyways, my main point was that those kind of comments don't really serve to de-mysticize the subject.