I don't know who got the idea of excluding AOA measurements based on speed. If I had designed the system, I would have kept this data all the time
That is because a lot of operators believe that with high speed you cannot stall thus no need for AOA indicator. These poor souls believe that the answer is ALWAYS to point the nose down which is the answer MOST of the time however not all the time. In reality an airplane can stall at any attitude and airspeed (within structural limitations of course.) The IAS and ATT are subordinate and supporting to an AOA indicator in relation to what the wing is actually producing. Even if the pilots were clueless the on board computers would know this (tongue in cheek)
So does the 330 have an AOA indicator and if not do you think that if it did and if the pilots were trained to interpret it would it have helped? After all it is giving a true condition into what the wing is doing.