Nice link.
I think the key part of the whole thing is from 6:00 onwards.
For anyone not bothered to listen to it. There was no visible indications of an ash encounter whatsoever. No St Elmo's fire, no signs of abrasion on the fuselage, nothing. Yet $3,000,000 of damage was done. And they were 200 miles away from where the cloud was predicted to be.