I think thats a bit harsh Mike.
In fairness to Dick he is correct, JKD is a concept, a mentality, a way of approaching the arts and not a style or system in itself. Where of course I agree with you is that there is Bruce's base system to be studied, I think what these gentlemen are looking for is Jun Fan Gung Fu. Through hard training in Jun Fan you learn, as you rightly say, how to apply the concepts of JKD through understanding Bruce Lee's physical approach. I also fully agree with you that sitting around reading books and surfing the internet and spouting Bruce Lee quotes is not JKD. However I don't think he was endorsing that either.
Where I do agree with Dick also is that JKD is no longer really a novel concept. Here in 2008 - finding the essence of a range of arts, tailor them to you as an individual, and flow through each situation in the most efficient way (as a core example)....thats out there. Walk into most MMA gyms and these concepts are just business as usual, trained in a functional and athletic way. They also won't stand around in their matching black t-shirts worrying about whether they are concentrating on the finger.