I haven't read quest text in a long, long time - let alone enjoyed questing.
I welcome this change. Expediting the levels always seemed a little ludicrous to me, and sort of answered a lot of the questions about why there were so many bad players at level cap.
I think the dialogues will quickly turn people away who are just looking for that end game thrill. I think it will do a lot to give those of us who cherish the ENTIRE game a feeling of immersion in the story line that's been absent in many recent games.