I don't think anyone can reasonably believe that 21 extra flights from Qatar would bring airfares down materially, let alone "40%" as some have claimed.
I also don't think anyone can reasonably believe that 21 extra flights from Qatar would not contribute and accelerate -- however modestly in isolation -- a downward pressure on fares.
But/so if it's not about money, what's it about? That's been the gazillion dollar question, and one that seems to cost the government more and more every day.
I'd bet a lot of money that if the government could go back with a crystal ball and make this decision again having seen the public fallout that's occurred, they'd have acted differently. If the reasons for denial were worth this political cost to the point they'd make the same decision again despite it, one would think they'd be able to communicate them clearly, convincingly and unapologetically.
Regardless, at least the focus has finally mostly shifted to where it belongs: on the government, not Qantas. If I were Vanessa Hudson this Friday arvo, that'd be at least one thing I'd be toasting to.