I was reading that the tech screens are driving costs down. Now they can create a common wiring harness and make all differentiation between models via software vs. mechanical linkage. Investing in software simplifies the manufacturing process and sources fewer SKUs for the wiring. Even if some wires are not used, commonality drives lower costs.
It may have been male bovine exhaust, but it seems rational. Also, those screens are not that expensive. The variation allows the appearance of customization and uplift between Ford/Lincoln, Chevy/Cadillac, etc. It is all software driven.
-RFC-