A long night , back of the clock, no radar and now program the FMC, I couldn't say that that was an un-makeable mistake.
Mate are you for real? It is totally unacceptable under any circumstance to be below MSA, Grid MORA, LSALT--EVER!!!!
To postulate that it is OK and the EGPWS is there to help is outrageous and akin to saying we don’t need ATC because we have TCAS II.
The lesion I thought in this instance is that when you are tired you cannot rely on PlayStation to fly for you. Sh1t in, sh1t out!