The Sequel Version of Luke is Polarizing at best. Whether this is YOUR Luke Skywalker or whether this is JAKE Skywalker, there IS a vital lesson you can learn from him. Here is my PERSPECTIVE
TLJ Luke expands on Yoda's do-or-do-not lesson. Yoda was telling Luke that the concept of trying means failure is a higher possibility. He didn't say failure was impossible, just that the try-mindset is pessimistic. TLJ tackles the aftermath and that Luke was too optimistic before his failure (he called it hubris).
