[salawat]

No, they really don't. The prescriptive testing requirements are both clear, and written in blood. If you can't handle those extremes in the prescribed manner, you don't carry the flying public.

The regulation is clear cut, and unambiguous in that regard. Furthermore, the crashes that occurred happened because a system that is only supposed to kick in at the extremes did so in non-extreme situations repeatedly due to GIGO (Garbage In, Garbage Out), and to disastrous effect.

I welcome you to look at the FDR telemetry curves for the two flights. The AoA measurement for one of them was 70-80 degrees if I recall, the other was 20ish degrees offset from where it should have been.