I stole one of
@slo town 's pics to help explain what the theory is. If you look at the back of the wheel there are the small holes around the large center hole. Those correspond to the 6 pins on the hub surface of the brake hat. These locate the wheel on the hub before the lugnut is tightened to make sure it is oriented correctly and flush mounted to the hub.
The theory with what RFK and Penske did was modify the holes on the wheels to make sure that they were engaged properly and faster than as the wheels were supplied by BBS. It wouldn't be surprising that Penske figured this out since V8 Supercars uses a similar setup and Penske about dominated V8SC from 2017-2020 with Scott McLaughlin winning the driver's title 2018-2020.
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