Do those raid quests in Plaguelands still exist? I'm guessing not, but vanilla wow used to have some very cool raid quest lines leading up to the level cap, things like Razelikh the Defiler or Araj the Summoner, or the Battle for Darrowdale. Great storytelling leading up to the end, really motivating you to find the one weekend raid doing those end events. That is something I miss, the personal storylines leading up to big set-piece confrontations.
In GW2 you feel like you're in a war. Take things like the Hinterlands events leading up to Captain Edwards and fighting Ulgoth. Rather than it being a story-led quest it's a series of dynamic events which you can join if you like, but you get the impression that these things just happen in the world.