“The put it on a rolling road with slats to create horizontal and vertical shake, then measured the accelerations on a dummy seated in the back seat.”
Are you referring to Jaguar? That test would not quantify the effect of just moving the brakes. It would quantify the effect of a whole suspension/drivetrain redesign.
In the paper they said they tested moving the brakes to the wheels with the old suspension, before they changed anything else.