M.Mouse, you're right about this control input which is hardly reflected in the data report (no pitch decrease before AP disconnect). Anyway this happened 6.5 sec after speed dropped below 110 kts. At that point there was nothing else to do than lowering the nose to save speed (by increasing Vz). It's not only a matter of trading Vz to save speed to fly above Vs, extra speed is subsequently required to absorb some of the Vz prior to impact. Maintaining a speed just over 100 Kts couldn't reduce the Vz below 1400 fpm.