Let them in.
Its surely better to have 2 or 3 smaller aircraft going to Perth than 1 A330 ie 2 pilot positions or up to 6.
You Qantas guys will suffer if SQ doesnt come here domsetically , QF will operate widebody Aircraft everywhere you could even see A380 flights to Perth the fleet could shrink by 20 or 30 aircraft and still Carry the same amount of people.
Unless your a QF Captain Already then you had better be happy to stay an F/O for a long long time , those poor AN guys...:o