What you really mean is that mean tracking a VOR which is too far away for official reception, using non-FM-immune equipment, is OK.
Puts quite an interesting slant on these "AICs" emanating from the CAA, doesn't it?
The people that write some of this stuff evidently aren't aware of the flight rules OCAS.
Sadly, these bizzare "pink" leaflets, drafted on the back of a fag packet over a pint or two, get read by a lot of people who take them as gospel, because they look "official".