Well I don’t know about the cause of that accident shown in the video above, however, since the discussion is about Jack Stall, Servo Transparency, ect.
It would be possible to enter that area of the Flight Envelope in a left as well as a right turn. Especially if you were at a high gross weight and maneuvering enthusiastically.
It is not necessary to be near, at or over VNE to encounter it.