Its sorta how the series has always been. Just play whatever, whenever, however and with whomever you please. None of us were more powerful than the other for working on the beer drinking achievement, playing polymock, doing some halls or running a mission we probably ran a hundred times over. Urgoz? We did that like all the time. There was no real reward for it- just got money [trivial] and the fun/challenge/interest of it all.
Now I don't think GW2 is nearly as cerebral or in-depth as the first games. But the sequel is at least consistent in what players enjoyed of the first ones. The goals of the game(s) are definitively casual focused. None of the GW games are "intense", for lack of a better term.