@ MACHINBIRD:
If this is typical for long range cruise operations, then there is a major problem with the man-machine interface
t=3 seconds, PNF reflexively disengaged AP and pitched up
t=8 seconds PF extended the speedbrakes
t=13 seconds PF retracted the speedbrakes
IMO if after these actions BOTH pilots lacks the monitoring of their instruments(Altitude, Airspeed+trend, V/S, Attitude, FMA)
and the lack of CRM after audible warnings accompanied with MW then there is a major problem with the MEN.