I think that the Jedi Code, as it is understood from the OT, is unworkable in the long run. "A Jedi uses the Force for knowledge and defense, never for attack." That has been demonstrably shown not to have worked out for Luke when he faced the Emperor. It is kind of like King Arthur's Grail quest; all of his best knights achieve the grail and are taken up to heaven, while his worst knights remain on Earth. Any Jedi Order would probably have the same fate.

I agree that for the Jedi path to work, it would need to change. Just not in the way that Jeni intends.