The first person we have t convince when we need to defend ourselves is ourself. Many if us gave been around enquiries and perhaps wondered at the strength of the need not to seem guilty. Andy Hill must believe in his defence.
We have, in many cases, adopted no blame enquiries. This started in aviation but is now seen in medicine. Vis. CHIRP We need to know what happened in order to reduce future risk. Too much arse covering arse covering allowed bad practices to continue.