Qantas tows aircraft to/from Intl / Dom / Intl at BNE just about every day of the week. That's their scheduling choices. I imagine much the same happens in SYD. But they can't do that in PER?
The point is, in Perth THERE IS NO NEED TO!!!
The facilities are there, the airline wants to use them, passengers would benefit from the convenience, but Perth Airport won’t let them.
Your only argument for why they should force this annoyance on Qantas passengers is so Perth Airport can make even larger profits from the travelling public.
Is this the Professional Airport Owners Rumour Network?