I must say it's high time the whole MATZ system was overhauled. The answer to BEagle, of course, is that it's seen as protecting the IAPs - hence the stub being in the direction of the ILS - but in practice it does no such thing, though the mil ATCOs seem to think it does - hence the prevalence of 'instructions' to aircraft who are actually in class G. The whole 'voluntary participation' thing is pointless and just leads to more civil/military arguments.
Make them all class E?
Tim