You would think!!! It was a surprise to me too, usually OS is very forgiving about problems like this but us not seeing the insides of the engine we will never know what they saw. A lot of things are out of there control and if Bax said it was an operator problem I would trust him. Wouldn't like it but I would trust his word for things.
OS service has always been very good and gotten better over the years. I think when I had my problems with them there were other things going on with the company and I just ran into it a little.