Fitter 2
I think the problem is caused by NATs not wanting IFR FAB arr traffic to be handled in the LTMA. All intermediate app manoeuvring is planned out of the LTMA hence the huge expanse of new CAS airspace required.
I would have thought that IFR departures out of FAB could be held on the ground until climb clearance direct into the LTMA was obtained, thus not requiring any new manoeuvring area.