The thing is, it actually does take less to do that on a keyboard than it does on a gamepad. Likewise, moving the way 1.0 or console games do on a keyboard is more tiresome. You try moving like that on a keyboard, and you'll have 3 of your fingers dancing around your WASD keys, while with the standard keyboard/mouse movement controls it could take only one key and a movement of the mouse with your other hand.
I definitely can see how it is nicer for keyboard and mouse users, but being mostly a gamepad user I can also see why it's pretty uncomfortable on a gamepad. That's why I hope they'll deliver both options (which apparently they might).
