Wow I never even saw that tooltip! I was too busy running for my life from the never ending onslaught of banditos.
I applaud A-Net pushing the envelope and adding something to an instance beyond: clear trash, get to boss, tank and spank (or some form of organized movement in addition to T&S), pray for good loot.
I think one great addition might be to have the NPC (when not just about instantly dying or unnecessarily pulling mobs) maybe articulate a little more about the path forward.