Does that make any sense now that we are all part of one big EASA-land?
No. It's difficult to be 100% sure without seeing the advice you were given, but an EASA Part-FCL licence issued by the UK must be accepted by any other EASA member state for flight in a (non-Annex II) aircraft on their register.
I also thought that the aircraft registered as PH-, F-, EC-, SP-, you name it, are EASA-registered and hence the country of licence issue and the country of registration are the same. Am I wrong?
Technically, yes, you are wrong. There is no such thing as an EASA registered aircraft (though the A-NPA on revision of the BR consults on that). The states retain their ICAO responsibilities as states of registration and states of licence issue. But they are obliged to recognise each other's certificates.
Bookworms and experts, please help!
Are you implying that bookworms are not experts?!
