The point is that there will be no way to handle the turn signal through muscle memory. With a traditional control, it is always in the same place in relation to your body. It doesn’t move. When it’s in the steering wheel, it can be in many, many different places. If you have media controls on your steering wheel, try using them during a turn without taking your eyes off the road. Now pretend they are smooth and act like a touch input on a dual shock controller.