Please no more "if only the ILS was working"
Many, many thousands of pilots fly visual approaches every day without an ILS. How many pilots managed to land at SFO that day without crashing. To say the ILS outage was a contributory factor is nonsense.
I fly the 777 and have flown numerous visual approach without an ILS with no extra stress involved in doing so....and i'm not alone!!!! this is standard practice across the world. If pilots can't fly to an airport without an ILS then they should not be allowed to fly at all. For the armchair experts out there a visual approach is not challenging.
I get the swiss cheese model, but individual responsibility come into play as well. I think that we just need to accept that we all occasionally F up - and these guys did just that.
I must say that I agree with post 1692... having flown with these guys I know these words to be true - I always laugh when non flying guys say "it can't possibly be that bad".