Please see the most recent updates in the "Where did the .com name go?" thread. Posts number 16 and 17.
Yep, the goal is to create aero packages that allow cars to pass rather than getting stuck behind another car. It also decreases the aero advantage of being the lead car. We've seen instances where a slower car inherits the lead due to cautions and pit stops, but better cars cannot catch the leader because they must contend with the aero forces created by surrounding cars.

they have to find a more equitable way for teams to adjust.
-Ed-