I would never presume to know much about Bruce or His training. I have seen many videos and books (I own) and I have visited some "JKD" schools (Inosanto). I respect Bruce for his movie presence and introducing many people to MA.
I will stand by my statement I believe his use of Wing chun is mainly watered down, and isn't very good. Obviously we can speculate why, but really he is dead, its silly to talk about him like we know him.. who cares.
Its very clear that his use of Wing chun doesn't have some of its most powerful tools. His foot work isn't at all Wing Chun. His original foot work wasn't very good, (judging by other peopls books with his notes).
I have no problem with JKD or MMA.
Wing Chun (Ip Man's) or may not have come from Shaolin. Its really only a legend and many people say many diff things. It really doesn't matter where WC comes from. If JKD players are able to benefit from what they understand of WC then great. Its just not a correct statement that He took the "most deadly aspects", thats simply BS. He took what he understood, and that he could get to work.
Bread and butter stuff like lop sao, Qwan sao, Gun sao are not in JKD. WC foot work is very powerful, and its not in JKD.
yes in the end its the fighter not the art that matters, but its the art that he uses. Its like a tool and a mechanic, a great mechanic can use really bad tools to fix a car. But the reverse doesn't hold true.