This will undoubtedly vary from person to person, but I felt there was enough to connect the failed hero to redeemed path in the films as presented. Now, I know that I am a very different person when it comes to willingness to engage with the material but I was able to read enough that I could follow the steps for Luke.A mixed noble death at that, with very little to bridge the failed-Hero to redeemed.
Obviously, not everyone will read it that way and that's OK. But, for me, it worked because I can see the elements of Luke's character throughout.