I suppose you do have a point, and I'm well aware that just because somebody works for the airlines doesn't automatically mean they are any good.
However, many of us with access to our own aircraft fly many more take offs and landings outside of work than we do at work. In my experience, those who maintain any connection with GA once flying professionally tend to enjoy the satisfaction of safe, accurate handling and practice flying throughout the entire flight envelope. Some of us still instruct and coach. I would be surprised if many people revalidate by experience with only 12 hours in their logbook and even then, if the CAA are satisfied, so am I.
I do not want any further bureaucracy or expense to maintain a privilege / standard that any professional pilot should not struggle to safely achieve.