The appropriate pitch and power for just about any modern aircraft at cruise altitudes, and not stalled, is a Body Angle of approx +2.5 deg and 80% N1. This will stabilize the aircraft safely and allow troubleshooting/descent to follow. Stabilized descent will be achieved with Body Angle Zero and Thrust Idle. The problem is - many pilots don't have this fundamental knowledge, and many airlines do not require their pilots to regularly practice loss of air data/loss of airspeed at altitude. If a stall is imminent at cruise altitude the manufacturers immediate recovery actions are required - the first of which is always immediate and significant reduction of Body Angle (A of A). Excessive A of A is the ONLY reason that a wing will suffer aerodynamic stall.There are numerous cyclic training programs out there with numerous carriers. The unfortunate truth is that some of them are simply bogus box ticking exercises, and we will continue to have hull losses of the kind recently experienced until professional training to professional standards becomes universal.