Yes, that's permanent.
maybe even criminal?
It's not really criminal is it? I've deployed several times in the last couple of years through Brize... MT dropped me off most times, and the Mrs picked me up the other couple of times on R+R. Is there really an occasion where MT won't transport you? You'll in all probability have a weapon after all, so you'd surely need MT or at least a hire car?
Brize only has a certain sized car park... they can't work miracles with the numbers of troops they deal with these days. I do sympathise with them.