What do you see it fitting? Because I havent been able to figure out where that hope is coming from at all. Im guessing there is more to it than an extension of the the traditional "Everybody needs to have Jedi powers, even Han, because characters cant be interesting without it."
It's not a hope (frankly I agree with your sentiment), merely a feeling based on some of his intereactions. All of this is circumstantial of course but:
1) He is definetly trying to hide his full competence, and it shows. You've got him feigning to be a nobody in the shop, pretending he doesn't know what trim crystal are, pretending not to care about politics, etc. So what are his full capabilities? We'll find out.
2) There's the quote from Cavendish (though I'll admit it can be read in different ways).
3) Maybe it's just me, but his manner of speaking is very similar to Ferus during his lucid moments. Though maybe that's just the "scholarly voice" coming through.
4) He's making big decisions (the supercrystal for the ship, the away team, warning the guilds in habble Landing) that seems to imply a certain amount of foresight . Sure, he could merely be a very good planner, but the set of coincidences that created this win seem a little "future vision" type thing. For example, what's with sending the Lancaster girl as "the smooth talker"? His one interaction with her must have shown him that she's way less competent than she thinks she is. It is arguable that Benedict would have done better with any of their interactions (the marines, the innkeeper, the potential ambush on the way to the inn). And yet sending her coincidentally allows Predator to be fixed in time. Very fortunate.
All in all there's nothing here conclusive, but it's a feeling I can't deny -- so much that I thought I saw a quote confirming it.