Originally Posted by
A33Zab 
It is a ADIRU issue, no airliner is supposed to be capable of flying! at 60 kt or less.
ADIRU ARINC Air data output is set to AoA NCD(No Computed Data) to the subsystems (e.g. FWC) at 60 kt or less and air speed output NCD below 30 kt or less.
IIRC Boeing T7 ADIRU sets NCD <30Kt and SAARU <50 kt-
OK Dozy. Very good. As we know, Mr. A33Zab knows his stuff.
That shows that the ADIRU design is the source of the conceptual problem.
The same loss of stall warning would apparently occur in a T7 should one somehow be taken to ridiculously high AOA and probably also to the 787.
Let's attempt to discuss why the ADIRU designers determined that it was appropriate to disable AOA at very low airspeeds. Perhaps over on the tech thread.
As we know, at least one aircraft was ill served by this design decision.