Agree with previous comments on the "off the record": It's common knowledge that those given any Media Ops training are told there is no such thing as off the record. You may find the comments you make in print a few days later with the phrase " An RAF spokesman said ......"
Another point is that "Surely the pilot will know what caused it / have an idea" Very true, and he / she will be unlikely to make a noose for their neck by chatting about it / speculating themselves to all and sundry at Leuchars. I'll put money on it that the CCO / PRO at Leuchars would be the last person the pilot would chat to about it.
Finally, more than likely, the command eject would be not be selected for a pax flight (if it was one).