zombie84 said:

Part of the lesson of the 6-episode series that we have is that the Jedi were idiots and were corrupted, and Luke succeeds because he DOESN'T follow their tradition. He rejects a lot of their fundamentals, like being older, being attached to people, etc. and becomes the greatest Jedi because he focuses on his attachment and that love is what saves him and heals the galaxy. He stands poised as a reformer who can re-shape the new Jedi order to be different than the flawed one of the past and break with their silly rules and traditions, so it makes sense from a story point of view that the prequel influence not be felt strongly.

Basically this is my theory as well.