A long while back, CAA (later CASA) and their AVMED were progressive.
(My thinking is the early 1980's as that also applied to me, then.)
I believe that the then attitudes were simply these:
Unless you present with reasons that are clearly unsafe, then go flying!
Bob Hoover was denied his FAA flying licence, all those years ago, in the 1990's. But the
then progressive Australian authority were prepared to allow him to do a proper medical and grant him an Australian licence. And he subsequently flew here as safely as he had always done.
I seem to remember that the FAA may have removed his entitlement (Freedom) to fly simply because he may have been deemed to be "Too Old".
Bob's now a highly experienced, retired aviator but clearly he's still alive!
Please pardon my thread drift. But the CVD thingy may be just the start...
As you all know?