All the comments seem quite fair, but there seems to be an underlying latent cause that no one has really put the finger on. Let's face it, if this happened, it could happen again, this is the main reason why we investigate accidents and occurrences. It's not only because the crew were incompetent, you can name pretty much everything, lack of training, unfamiliar airport, weather, etc and you'll find it in this sad accident, but what do we do next?
Most of these IAP's were designed in an era were there was light traffic, but cannot cope with the high volumes of traffic and is not using all the available technology.
I think the answer here is moving towards RNP APCH (AR), just like Juneau in Alaska, Kathmandu in Nepal, Queenstown in NZ and all these weird places where the construction and use of an airport is not ideal due to the terrain considerations, yet its use is more and more popular.
IMHO, I think this is a wake-up call to move in a direction away from old procedure design and "dive and drive" kinda flying towards the aviation as we like it on the 21st Century.