I imagine that dying gives a person a great deal of perspective on things, so that when one would normally interfere with the events of the galaxy instead there’s a case of extreme passivity and letting things be. Yoda didn’t destroy anything except a rotting stump, and only because he knew that Luke needed to get beyond his hatred of Jedi dogma. It was little more than a mischievous trick, totally in keeping with the slightly crazy second most powerful Jedi in the galaxy.
And then we go back full circle again. Why did Luke even adopt the Jedi doctrine in the first place? Did he even know about it? If he had access to so much history and knew that it had failed, why attempt it? He was trained in a very different way and turned out to be the greatest Jedi of all time. Why would he go back to the stupid prequel way of being a Jedi? (That was meant to be stupid from day 1 of the PT) Sigh.