A friend I pulled over from WoW (who does not post on these forums) brought this issue up in a recent conversation:

That because Palace of the Dead is a singular dungeon that one can use to go from low level straight to level cap is going to cause a larger demand for story skipping things to be implemented because people would rather spend money to skip the story than run the story, especially since they are already at the level cap from running Palace of the Dead all the time. That its going to create the same spiral that has dragged WoW down.