People are screaming fatigue?? but there is no roster data. If you point fingers at something you should provide supporting evidence, not a stab in the dark.
There is also the call to question the hours of the crew; again no data. was it a training flight?
It is curious considering the bodily actions. A flap lever is beside your hand and needs little body movement; the gear lever is a positive stretch forward.
In a previous carrier, B733, there had been a few cadet errors with mis-hearing commands. F1 takeoffs, at acceleration altitude the call by PF was "bug UP." Flaps
UP selected in error. The call was changed to try and avert this error.
Interesting, considering the control freak nature of much of the FBW a/c, that there is no lock on there flap lever below a certain RA height e.g. 100-200'. Perhaps it was considered and perhaps it was decided that trained pilots could not be so dumb. That theory has been disproved many times.
However, I am not an advocate of dumbing down our profession into more auto-dependancy.
I'd be interested to hear how the a/c reacted and how PF reacted. Was this an F1 takeoff; therefore only 1 section to flaps up, or was this a selection from 2nd flap gate to next gate; or was it even from 2nd flap gate all the way up. Ouch.
F1 - UP on B737 and you lose the LED's would make life challenging at low level, especially if max reduced thrust and being in THR HLD. It would take quick action to firewall the levers and stop the nose up pitch and avoid ground contact.
One comment on AV website mentioned: "if it was an F/O action then further sim training, if was a captain's command then demotion." If it was captain's command then PM (F/O) should not have executed it. That's what PM is for. Mind you, in the TR with cadets, it took many head bashings to make the PM's aware that doing something because "I was only obeying orders" was no defence in a screw up.
Next recurrent sim anyone??? It would certainly take fine attitude control not to push to below level flight. Ground effect can be your friend.