Having never had the benefit of being at the sharp end of motorsport, but nevertheless being an Engineer, the logic expressed in that article makes a great deal of sense. However, we do see - particularly in F1 Qualifying - examples of particular drivers (Hamilton, Senna, and a few others) routinely seeming to be able to make much better use of their equipment than their team-mate.
So, a question: How much of that difference is down to the driver's innate ability to drive the car, perhaps by modifying their approach to maximise the car's performance with a given setup, and how much is down to how the the driver influences the setup and characteristics of the car and uses that to gain advantage?