The Mission Table has been a staple of the past three expansions of World of Warcraft, with much the same gameplay since Warlords of Draenor -- recruit followers, send followers to go get stuff for a couple hours, collect loot.
Repetitive tasks just don't hold my interest for very long, and everything about the Garrison and Order Hall mission system falls into this category.
In the Legion alpha, we will still have a few scrappy individuals following us around.
There is in fact a reasonable amount of stuff to do at max level. So how come it doesn't feel like there is? Why do I, and so many other players, feel disconnected from the world that I just demonstrated is available to us? I think there are two basic problems at max level right now.
I'm on record, when we saw the introduction of pet battles, as saying 'Well, this isn't content I care about, but it's good for people who like it' because pet battles are utterly optional. The various rewards you get for pet battles only affect the pet battle minigame itself - stones and other rewards that affect the pets and how they level. There's never a reason to play pet battles if you don't enjoy the gameplay - you're never forced to do it, nor do you even feel forced to. I can say this having utterly ignored pet battles since their introduction.