Because the processing of the gears in the racing car, makes the engine run smoother; not knowing to clutch, and take the acceleration off slightly, can be the thing that messes the engine up.I know where those energies reside but what is the benefit of knowing this?
Same applies with these systems in Yoga & Chakras together, where the advanced understandings can empower us out of depression; which is often caused from bad health somewhere in this system.
Our whole vitality is regulated by our chakras, thus knowledge of the workings can lead to a much more fulfilling life (Sat Chit Ananda).
In my opinion.