Come on get real, whether the QF pilot advised his inbound tracking details prior to this call or not, it is not an ideal way of advising another aircraft of where to look. It does not provide the best solution for situational awareness.
If I make an inbound call to Mt Gambier and then subsequently advised I was 15 nm at 6 o'clock Mt Gambier, you would consider that acceptable, I don't think so.
Along a similar vein, pilots who report inbound or tracking to some obscure location that only. a local would recognise might need a rethink.