I am all for class specific quests. I do however feel that they should be class specific and each class should have one, or a number of them.

For instance:

Pally mount quest. Done at level this was an awesome quest.

The warloc thing is ok but it should be warloc specific, such as a quest chain to learn each pet, like used to be implemented instead of BAM you are 90 heres your bag of pets.

Same goes for huntards.

It would not fry the dev's noodles too hard to come up with lass specific quest lines for each.

Just my two cents.