What part of the graph above (FPV off) do you not understand? I don't see why everyone is focussing on the bird now (also in the other thread). This way of discussion leads nowhere. The bird was not on, the FPV not and the FPD not.
If they would have selected something on the FD, you would hear it on the CVR. He would say "let's switch off the FD" or PNF says "switch off the FD". If you don't have any of the two, only one person would have switched it off. They were not able to simultanously coordinate a switching in both seats without telling each other.