I can’t help but wonder given that the crew hours were “legal” that there may have been some politics at play in downplaying fatigue. I seem to recall the roster of one of the pilots being posted on here just after the accident and it was pretty bloody awful.
I also found the HUD and guidance cues deeply confusing. It was clear the FO had far better SA throughout, which although was a consequence of his not manually flying the aircraft was also I think because he had traditional instruments in front of him. I suspect with a blue/brown PFD and the traditional crossbar flight directors this would just have been a messy go around.