The way I read this is : Pilots May have had erroneous air data (caused by faulty AOA sensor) on one side, causing multiple miscompare messages.
Confusing start..
Autopilot may not have been available; the bulletin saying STS may continue to trim nose-down to prevent a stall condition during manual flight.
(With those messages why wouldn’t the software automatically inhibit the STS?)
Either a false stick pusher activated, or the crew was fighting an ever-worsening out-of-trim condition which resulted in enourmous stick forces they could no longer handle? Both?
All the above my speculation, of course.