If you compare Blizzard to other similarly sized competing PC game design shops/distributors, I think you'll find that Blizzard has more "best game" than any of them.
There are some small indie shops that are less compromising but Blizzard is simply the best there is in its market space, from a financial as well as a design perspective.
That doesn't of course mean that Blizzard gives me or you exactly what we want. But it does mean that on the whole Blizzard does very well. So I -- personally -- take that into account when I talk about organized raiding and its prominence in the game. On the one hand, I think it is probably a dead end. On the other hand, Blizzard has made however many billions of dollars with a game that is focused on organized raiding (even if only a fraction of players ever actually do it), so I guess Blizzard isn't entirely stupid in its process.