Apollo, with all due respect, what I am getting at, is that if this accident was purely a case of CFIT (we haven't quite got to the bottom of it all be honest) then the major errors in judgement took place well before the moment of impact. Something as simple as a grid mora / msa should still stand as the basic sacrosanct limitation of your descent.
That said, I too have decended below MSA, due to ops pressures etc ( young dumb and...) , and the last time I ever did that, I popped out of the cloud in a valley, with hilltops hidden in the clouds all around me. I was lucky - thats all.
I have since flown with EGPWS quite regularly, and of course understand its merits and place in the modern cockpit. However, my point is that millions of flights before the days of EGPWS could be concluded safely, with the use of simple tools, such as MSA and MORAs. But thats at the most simplistic level of viewing this accident.