I think there is still some room for an exploit here, in relation to the verdict.
What if the driver could store a sequence of brake bias settings during the outlap/formation lap and then call upon that sequence at the push of a button?
For example, on the out lap, the driver sets the bias to 51/49% for the first corner and 55/45% for the second etc. This is then stored, and the drivers starts qualifying lap, push the button ahead of the first breaking point, then again ahead of the second, and the brake bias changes accordingly to his preparations.
It's the driver who sets the brake bias, and he who commands the changes manually, just to that preset bias. Would that really constitute a driving aid?