In Cantonese Chinese martial arts can generally be divided into three "types"
Pai, Do, and Kuen.
Now these are loose interpretations but here goes.
Pai means system (Fu Jow Pai or Ying Jow Pai), and implies that everything is laid out for the practitioner. Only the powers that be can make changes.
Do (Tao) means path/way. It's a more philosophical approach to an art.
Kuen means 'fist'. I know that there is a Wing Chun Do but that's a modern art. The Wing Chun I'm refering to is a kuen. Hence the name Wing Chun Kuen. Though the underlying principle is simplicity it's eclectic, open to interpretation and change. What's efficient for some may not be for others.
To say this or that is or is not can be misleading. I don't know the exact quote but Sibak WSL said something like don't be a slave to WC.
The idea of a kuen is if you knock someone out and your elbow was out he's still knocked out.