Hope dies last...
It finally died now. What a pity that such a great game is dragged down by such an incredibly stupid decision.
Some combination of "imprecise" and "indirect" probably.
I'm guessing it is due to the lack of time that there will be only one kind of UI.
As for M&K, I will be surprised if it won't be at least as precise as gamepads. M&K is (IMO) by far the most precise controlling device for such games. I would be relaxed if I were you