Nope it was the engineers and the people who built it was the captain that ran it into a mountain =^)
I could have this completely wrong, Tempest, but in following the threads on this accident, my recollection, after lots of bashing of the Captain for running into a mountain, FGS, was that it was discovered that the mountain was NOT on any charts, sonar is not operating when the sub is being stealthy (I'm sure there is a more nautical way to say that), and that this was pretty much unavoidable. I know I will be corrected if I have misunderstood. Tremendous credit certainly does go to the engineers and those who built what must be a remarkable craft.
It takes a proper captain to train and discipline a crew to react properly in this type of situation. My hat is off to him and the crew. If he was on-course, he did not "run it into a mountain". He was a victim of fate and the official orders that put him on that course.