That was precisely the misunderstanding. The purpose of the device was to improve mechanical grip by allowing the tires to have a more uniform pressure with the ground, removing some of the influence of impulses applied to the tire/suspension and the attendant lateral oscillations that result.

With such a rigid interpretation of the regulations, one could say the anti roll bar, spring, or damper would also be in violation of the regulations, as they have knock on effects concerning the aerodynamics.