Right on FA.
It is not just FOs who cannot fly. In some airlines I worked for the captains could not fly either. If it did not have an ILS they simply could not manage. Visual Approach? Banned by the Chief Pilot so as not to embarrass the captains.
If I could not at least equal the automatics I would quit.
All that stuff about tired, busy airspace, complex approaches etc is just a way of saying "I'm scared, Mommy!"