Lyle Bogin wrote:
I feel that separating styles of martial arts in this way is detrimental to study of the subject.
Agreed. At last year's Aiki Expo, Ushiro sensei (7th dan, Shindo-ryu karate) talked a lot about the use of kokyu in his karate. I remember some fourth or fifth dan guy I was training with in my karate days trying to explain center to center connection in karate (which I didn't get back then)...
I think this sort of distinction is like the so-called distinction between "do" and "jutsu" arts. It's not much of a distinction, in the long run...