The sensor was never designed for what it was used. It was designed to provide input to a visual display for the pilot. The pilot always had a lot of other inpu

The sensor was never designed for what it was used. It was designed to provide input to a visual display for the pilot. The pilot always had a lot of other inputs. The reliability requirements were totally different to what was needed to directly control an airplane in a critical situation. The software design compounded the problem with some bizare design decisions. This was a system design failure. High level reliability requirements were not properly communicated to the subsystems. Subsystem failure was not properly analyzed. Human Machine interface considerations were ignored. Considering the rush job and shortcuts Boeing made for this "feature" a valid consideration by a regulator would be to question their quality system. And that should trigger a systematic approach to reviewing all other requirements and design work going into the 737MAX.