Lots of people here do not know how ATC works and what the international interceptions rules are
The big question still open is what the crew was told and if they were intercepted or not.. If the aircraft was indeed intercepted then a large part of the discussion is becoming irrelevant.
As to disregarding an interception, well I would not advise this in any country, and definitively not after 9/11. Also since a couple of years the world is slowly becoming a much more dangerous place.
Anyway the RYR crew has been debriefed, their story will no doubt come out soon , so a bit of patience.