I'm surprised that no-one has challenged the 'Oxford AIAA' yet. There's very little flying at Brize nowadays, Abingdon no longer has any flying units, Upper Heyford has closes, Kidlington doesn't have anything like the traffic levels of 20 years ago - so why is there still a need for an AIAA?
Maybe because Brize ATC has pissed off that many local GA that there is a minor but major percentage is not talking to them. There holds are outside the CAS. And they want radar separation all the time on the traffic. Because a major minority aren't talking to them there is quite a bit of unknown traffic. And also traffic which is speaking to them but is refusing co-ordination.
Although making it an AIAA isn't really going to change that. But then again its not the first time that RAF ATC have done things with no real clue about how the civilian mind set works. An AIAA really does nothing for a civilian and as it doesn't have any requirements under law they will just continue as they are currently doing.