What I find odd is that, for all your complaints about some characters moving backwards, you praise the Moash arc. A character who's gone so far backwards since Way of Kings, that it has become a forward progression. Instead of learning how to move beyond his past like the rest of Bridge 4 are striving to do, he turned around and fully embraced it, even after Kaladin showed the "righteousness" of his own cause in WoR, becoming a Radiant right before Moash's eyes... something that would have inspired Moash if it happened in twok, instead.... he runs off with graves and later decides that killing the king is still cool, because it's "not his fault".. now he's being set up as, essentially, Kaladin's nemesis. The guy who rescued him in the first place. You don't get more backwards than that.
And yet, I'm very looking forward to, I hope, their eventual showdown in the future.