That's a little harsh. Look at the transcripts and you'll see that the senior (albeit not by much) F/O - acting as PNF - seems painfully uncomfortable with how the aircraft is being handled, but it is only when the Captain arrives in the flight deck that he feels he has the authority to act (notably *emphatically* preventing the PF from deploying the speedbrakes). Up until that point he tries to correct the PF verbally, but does not take control of the aircraft.
Dozy, it isn't exactly a democracy in the cockpit. It is more of a meritocracy. You warn the other person that they are f'ing up if time permits and then act if you hope to be bouncing your grandkids on your knee.
Problem is that PNF did not act, he punted the problem to the Captain. That is as much of a problem as is PF's handling of the aircraft.
The reasons the PNF did not act need to be understood and corrected.