No, they (both EU and UK nationals) don't unless they comply with national requirements.
The British people voted to leave the EU and stop free movement between the island and the continent, you can't ignore that.
CW247 the only obvious conclusion is that you can't extrapolate "data" from two airports and state they're valid for the entire country. It's like saying that FR has a lot of foreign pilots in DUB, so that must also be true for Cork. Furthermore, your "survey" doesn't tell us anything about the number of UK pilots in the EU.