I don't think I implied anything to say that a car should treat a bike or any other object moving into its path as a false positive. To the contrary, what I was saying is that it did treat it as a false positive but that was obviously not the intention of the engineers.

My overall point is simple, the car almost certainly saw the person - it just had to have, but the way it evaluated what to do about it was wrong because evaluating reality, as it turns out, is incredibly complex.