If the content of that email is even half right, then I'm afraid that Vince has some very serious issues regarding his competence to fly that need to be admitted to and addressed before he flies again.
Unfortunately, I doubt that Vince will see that he's made any errors at all, he comes across as an individual who is completely oblivious to his own failings.
The AAIB report might make interesting reading when it comes out, although, because there were no serious injuries, I doubt that they will bother to look at causality in too much detail; they may even just rely on Vince's own account as the principal source of evidence.
It would be nice to think that his insurers might choose to look carefully at why this accident happened, but as third party damage was modest I doubt they'll bother, either.
The net result is that Vince will carry on as before, until the next accident.
VP