Sailvi767,
Speed: - Except that AoA malfunction also affects speed, ‘speed disagree’; so which speed is correct. Thus the need for a third system cross check, but two different cues - stick shake and low speed awareness strongly suggest the lower (erroneous) speed is correct - mental conflict.
Higher workload / confusion immediately after liftoff; which might not aid safety.
phylosocopter,
Pitch power settings are a valuable guide, but as you note these are situationaly dependent.
Current drills differentiate ‘dynamic’ situations, such as takeoff, and ‘static’ situations for continued flight; thus crews have to identify, differentiate, and recall the appropriate procedure. In complex operations there will be more considerations.
The ‘obscuring’ Magenta Line view contributes to the difficulties of judgement. The phase does not relate to the dependence on automation, but knowledge of when to change the course of action; hence the underlying Magenta Line message was ‘Click Click’ (see video) - switch off automation, change plans, but nowhere does this consider how and when pilots would detect this point.
Magenta Line is a widely used catch phase, but one where few people understand the deep meaning and requirement to first understand the situation.