Merlin’s Interdict is unrelated to wands. It simply prevents certain magical knowledge from being passed down in any way other than through oral instruction. It doesn’t prevent spontaneous rediscovery of that magical knowledge; the magic was there waiting to be discovered.
Moreover, it ignores Merlin’s interdict. Those children had not learned how to disillusion themselves.
I think you’re on to something here.
Merlin’s Interdict is unrelated to wands. It simply prevents certain magical knowledge from being passed down in any way other than through oral instruction. It doesn’t prevent spontaneous rediscovery of that magical knowledge; the magic was there waiting to be discovered.