re: Yoda and the Clone Wars era Jedi Council were really not competent at their jobs at all

quote:

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I really thought the new trilogy was going to address this, and have Luke being balance to the force in this way by incorporating emotion and some dark side ability into a new way of the force, bringing balance. The trailers hinted at that with “it’s time for the Jedi to end.” It seemed promising that he had learned from his experiences and would improve on the old Jedi ways. Instead of course we got The Last Jedi.

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The expanded universe of books does address this.

Luke got married to Mara Jade, had children, etc.

He made corrections to the course of the Jedi doctrine.

And Kathleen Kennedy and LucasArts rejected it all.