The more I think about it, the more I appreciate what RJ did with this.
By amplifying the idea of the Jedi as a fatally flawed dogma, it turns the triumphant finale of the Original Trilogy into a threat. With The Return of the Jedi, the galaxy is forced to endure yet another war caused by this religion.
And so The Return of the Jedi becomes the giant looming question, the impossible task, the paradox that the final trilogy must solve.