I wish there were more ways to control mobs.

Holmgang, for example, could have been made a 25-meter range skill. It will open up a wide range of possibilities for pulling. Yes I'm thinking about the Death Grip of WoW. :3 Warriors could have a lot more stun-based abilities, like Steel Cyclone could have a short stun, etc.

Paladins could get a straight column based knockback charge (Shield Charge), but instead of a simple knock back, it will knock back everything on its path varying distances such that everything that got knocked back would end up where the Paladin ends up. Or maybe a spell reflect or something.

Although we can also argue that the game is still in its infancy (in terms of new Job design), and we're only looking at the very basic bare bones of each class. I'm optimistic about this, perhaps in 3.0 or 4.0 there could be more new skills for each Job.

It's also arguable that they deliberately made tanking like this so newbies aren't overwhelmed by the "rotations" so they can pay more attention to positioning and enmity. Who knows.