Is buffet associated with Stall possible in Normal Law? Would it matter? FA: "...should we sit?..." (Belt in) "Yes I think so...'
Captain entering cockpit was climbing an aisle at 15 degrees nose up? 1g? He said nothing except "Er... what are you doing?"
With aerodynamic noise at high level, and an arduous "climb" up the aisle, he misses the cues?