I'm aware that "mashing the pedal" might not be identical, because the PC will re-map how the throttle input is received, but the PC logically cannot do anything beyond re-mapping the throttle input. The only connection is unplugging the throttle pedal and connecting the PC in-line.

I'm not arguing that I wouldn't like it (I still think about buying one on-and-off because the stock throttle mapping and shift points, especially light acceleration when the car upshifts around 15mph into 3rd or whatever and feels like a slug, are absolute crap), I'm not arguing that it's not a great product, I'm saying the only thing the PC does is re-map throttle input, which when people want a more "responsive" throttle pedal is essentially the exact same thing as mashing your foot further down on a stock car.