Duck,I think you meant to say "Totally Avoidable" ,anyway that's the way I would read it..I flew extensively In PNG over 40 years ago ..long before the invention of GPWS let alone EGPWS systems, it seems to me and in fact I have been told that some Pilots are in the habit of disabling the system,to avoid nuisance warnings when operating into some of the more ....shall we say...."Sporting" Airstrips ...One cannot help but wonder if this was the Habit of the accident crew....particularly the Capt. If so ....... Well ...it's just a theory.