Perhaps a few pounds spent on overtime for ATC and a manouvering block in the MATZ would be money well spent?
Not sure why ATC would need overtime, as they are on duty during flying operating hours anyway.
The MATZ only goes up to 2000 feet and aerobatics are not to be conducted below 3000 feet, so a manoeuvring block
in the MATZ is a non-starter. If you tried to get a dedicated manoeuvring block established above the MATZ, you'd have a riot on your hands from the civvie world.
Anyway, trying to get all the UAS and AEF aircraft that are airborne at any one time to do their aerobatics in an area as small as the MATZ would result in a large number of close calls to say the least, especially if you were talking about operating in/above the home base (Benson) MATZ. If you were suggesting that the aircraft transit from Benson to Lyneham, by the time the AEF Tutor had flown the 30 (ish) miles, it would be time to turn round and go home.