I don't understand what you mean with this.
I found leveling a lot of fun in MoP, is it more of the same? Sure of course it is, but you making it sound like leveling in other expansions was different (or difficult) which it certainly was not, in fact killing some of the world rares in MoP is quite challenging in full green gear
I really enjoyed a lot of the story lines leveling and I thought it was put together very well.
I guess you just hate the theme? (which I can understand but that is vastly different to what you are saying).
Also levelling teaches you nothing about raiding with your class, I dinged a monk recently (about 5 weeks ago) I literally knew nothing about how to raid with her when she dinged, I am now doing 220k in flex, research is your friend.