Of my god, just give it up. The direct cause of the event was the aircraft was operated below MSA when not in VMC conditions against published policy. If that hadn't have happened then no amount of 'wrong coordinates, bad training etc 'would have mattered.
Now, that is not to say the crew is to blame, although the CAA aproval clearly stated that flight below MSA was not permitted, the reality is that the crews who operated these flights were told that a VMC descent was acceptable and expected as the flights were openly sold to the travelling public showing images that were taken on aircraft doing just that.
The CP, more than likely, thought he was in VMC. Biggest lesson out of this debacle is..... Never trust any procedure were you are told to do something that is against manual procedures! And when you get the gut feeling that something ain't right, like this crew did, get the hell out of there.
And of course sadly, these things happen from time to time, we just hope that we learn some lessons from it.