This raises some pretty fundamental issues. It seems clear to me that Vince should not continue flying. But whether we can rely on the CAA to ensure that happens is a big question.
I've flown with lots of PPLs doing their biennial flight with an instructor for revalidation, and I have (on one occasion) refused to sign someone's logbook because they clearly needed some focused refresher training. But contrast that with car drivers. Once you pass your test you can drive for decades, steadily acquiring bad habits and simultaneously forgetting your training. But I'd argue the chances of killing someone else as a result of bad airmanship with a PPL are significantly less than the chances of killing someone else as a result of bad driving.
It seems to me all eyes should now be on the CAA to see what they do. If there's no action from them, then the message is surely that busting controlled airspace and running out of fuel, and then denying that either of those things happened, are acceptable limits of PPL behaviour. Not a pretty picture.
NS