True, controls should be in range without taking the hands of the wheel, but putting buttons onto the steering wheel is only the second best option. I think a better choice are "satellites", as used by Renault or Nissan, behind the steering wheel and below the turn indicator and so on. Those are always at the same position, regardless of the steering wheel's rotation, and I can find and operate them without looking and without taking the hands of the steering wheel. I guess there are some issues with those, too, because they haven't been generally adopted.