Tourist
I see your point, although you are wrong. An FIR has nothing to do with any dispute between two countries. An FIR is an ICAO recognised jurisdiction and rules must be obeyed by all signatories of the Chicago convention. The Greek FIR is being violated since rules are not being obeyed in these cases.
P.S. I tried to be careful and a-political in my original wording, as I was only trying to demonstrate that FIR violations these days are not uncommon.