Doze...
You miss the point completely. Adding complexity (sic), is done by the ADRs, when they act on deviant raw data at the pitot aperture, then synthesize and report to the pilots a value that is already known to be false.
By the time the aircrew heard the Cavalry and Saw Master Caution, the computer had been stumped for ten seconds. Had the crew been privy to an amber caution the instant the ADR was evaluating, we may not be here three years later. Add to that a Law degrade that is annunciated after the fact, and the stage is set.
Basic cf at the interface....