If the cricket devil came to town and said "The deal is, Australia lose all the world cups there are for all time, but in return win the Ashes forever" every single Aussie fan would say "Hold my beer - where do I sign?"

I would really like to uptick this but.........
Inferring anything much for a Federal general election from a state seat by-election is a bit of a non-starter.
(For starters check out the turnout - less than 75%. That's a lot of missing voters).