Ehm...you DO realize many, many people play this game with...a mouse and a keyboard?
*pause to let you recover from the shock*
And guess what - the action bar is the best thing a keyboard & mouse player can have!
Sure, the UI can be adjusted depending on how you play, but making 2 so entirely different versions is just stupid.
Deal with it, it's not like it's hard to select commands with a controller.