Former Champ Car champion DeMatta weighed 120 pounds soaking wet. No one complained about his weight. He spent a season in F1 and did poorly. Obviously, a few pounds can't make a winner out of a second rate chassis.
It boils down to Gordon being intimidated by a woman who is just as fast as he is....
Besides, I dislike the whole concept of mandating equal cars. Remember the Jim Hall's Chaparrals, the Lotus 72 and the Gurney Eagles? Under the concept of equal cars, none of those would have been developed.
My regards,
Widewing