BEagle isn't your approach a little bit "jobsworth"? I cannot think of a single negative reason and lots of positive reasons in wanting to resit an exam. Perhaps you could expand on your logic.
I rather commend someone who actively wants to be formally assessed in an important subject such as "Air Law" after a significant period of absence from the skies.
I'm actually doing a refresher myself after a mere "winter" of absence though I don't personally feel complelled to do an "exam" I can totally understand the logic behind it after a long period away.