Watching wooden potatoes playthrough of the story has been highly interesting on the account of all the trivia and npc details and references he includes. However he alludes at one point to how facerollingly easy it is to get through the main story, and how little it feels like an rpg with important levelling choices, and more just a railroaded ride.
I'd suggest adding some difficulty settings to the story instances. easy is what it would be now, but for new players there should be a choice of medium. Enough challenge to keep people form falling asleep, but not enough to frustrate. Once the main story is completed once, a hard and perhaps even later an expert/impossible mode should come out, making the repeating of story experiences on new characters less of a chore and more of a personal challenge.
To go even further, completing these modes could even have achievements and rewards attached to them.
One small design flaw could be players making the hard modes easier by first ignoring the story and getting gear that will make them stronger in the story despite scaled stats, but in my opinion players should be allowed to do this if they really really want to.