It was more of an example of something easy they could have done to make it less shit since iirc they really went all in on the “I gave into fear” as his main reason for exile - but it’d still be a polished turd regardless because of what you said. With how it currently is, it would be at best a decent premise to explore if they spun it in a different light than what was shown in the final release, if that makes sense.

I still like the idea of Luke becoming a jaded hermit tbh, but the execution has to be done well for it. I personally like your idea of Luke becoming tired of people failing to find that balance and either becoming too much like the Jedi of the prequel era or becoming easily tempted by the dark side - with Kylo becoming the straw that broke the camel’s back for Luke.