Jeet Kune Do is a philosophy, not an art. Bruce Lee was paticularly talented, so if he studied White Crane, Nei Quan and Ninjutusu, the method taught in JKD schools would invariably be different, but still based on those principles.

You say judo teaches throws (and the rest), JKD teaches the fastest most deadliest way to deal with opponents. I never say Bruce Lee, despite his martial prowess, teach the stuff you see in Koryu Karate or Hapkido, or contact fighting using little padding/gloves. There are other ways.