Jumbo
I quote from your own reference (my emboldening):
"3 Availability of the MATZ Penetration Service
3.1 A MATZ Penetration Service will be available during the published hours of watch of the respective ATS Units. However, as
many units are often open for flying outside normal operating hours, pilots should call for the penetration service irrespective of the
hours of watch published. If, outside normal operating hours, no reply is received after two consecutive calls, pilots are advised to
proceed with caution. Information on the operation of aerodromes outside their normal operating hours may be obtained by telephone
from the appropriate Military Air Traffic Control Centre:
(a) North of 5430N - Telephone: Scottish ACC (Mil) 01292 - 479800, Ext 6703/4.
(b) South of 5430N - Telephone: London ACC (Mil) 01895 - 426150."
Edited to add: I completely agree with Blunt's comments - mil FJ operators generally want Class G airspace just as much as GA, and bickering such as this does no-one except the airspace-grabbers in commercial aviation!