I'm afraid we rely on auto thrust so much now it is actually becoming a serious problem whenever you fly with an aeroplane where it is unserviceable. I don't know if that is a factor with this incident. The level of relying on automatics is such now that Airbuses are banned without autothrust in various places now, aren't they? I know when I have flown without A/T, sooner or later it is inevitable the speed does something unexpected through you relying on it so throroughly.