John Doom said:
Not necessarily: having him help against the FO by saving the main characters, or even having him answer meaningful questions on his exile, would’ve been enough.
Fair enough. If we were keeping most of the story the same where in the film would you believe to be the best time that Luke is found?
Which doesn’t happen in TFA, though, unlike in the above examples I quoted.
Doesn’t really need to. We already know it’s going to happen.