Blizzard is trying to give the whole questing experience a bit more depth, so rather than just sending us to kill x mobs (which is boring after a while) the quests tell you to talk to this guys, use this object, find that stuff, mix this and that, etc
In my opinion it brings much more to the game and I find it awesome.
The fact that it's a bit annoying to boxers is only a side effect, but honestly at this point of the game you could turn 80 by just doing the BT and HF quests. Go to the other zone and pick the ones you like.

Jamba Items will simplify your task ALOT, it's just like single toon questing.

In cata the whole quest mechanic is changing again, and you won't have to travel as much etc. Although it seems like a great change for levelling junkies, lore lovers might find it a bit meh. I'm on the fence on that one.