I am not entirely sure why anyone would hate the UI that's currently in place. I find it MUCH easier than XI, and I'm on a controller. (always). I only touch the keyboard to type really.

In XI, yes. You did have the Attack/Magic/etc. But really, did you actually play with this? Chance are, you probably didn't. You likley had macros for everything (I absolutely did) which if you think about it... looks ungodly similar to the action bar we have now. It has... 10 actions, and you can push a button and boom, it goes off. We also can use macros too. If XI had only been playable with that list, I would have likely been the worst player ever when playing a mage.

If this was a turn-based game, I'd feel differently.