So now you have a proof that the notification in AIP simply doesn't work as you expect. A pilot - when in doubt - will ask you and it's your job to provide assistance. IMHO saying "face XXX" instead of "rwy 06" takes the same time but is significantly more helpful to the crew.
Of course it is not problem to say face to xxx i can say, but the pilot said that this rules is written where ? steadily. I told it is written in AIP but he did not accepted it is written, otherwise i say again it is not problem o use extra phrase to helpful