I can't make that leap.
However, under "features" I only accept outright its cooler/more airflow to the axles/tires. The pic included of an "aero' in the wet shows IMO more spray, and they also mention what a regular flap adds in drag but not what the aero flap adds, it changes airflow almost randomly, and that does not seem to be a sound method of reducing drag.
I rate the sales pitch one notch above bogus.
