?
They don't shift states.
They just make sure the games are played at the best grounds
But they do state-shift the Grand Final.
My point is the AFL arbitrarily decides where finals are played. Geelong played Fremantle at Simonds; GWS played the Bulldogs at Spotless. There have also been finals at Etihad in the past. Why weren't those games at the 'better' grounds of the MCG and SCG respectively?
The rule should either be actual home ground advantage (aka. the fair option) for all finals, or the 'better ground rule' (aka. better for fans option). The first option means the Grand Final is played at the home ground of the team that finishes higher, unless that team decides to move it to another one of their home grounds. The second option means
any final can be moved to the 'best' stadium,
even interstate finals if that is the best option for fans.
The only reason that Richmond aren't going to play at Simonds is because the AFL doesn't want to "lock out" opposition fans. So by that reasoning, a final at Adelaide Oval or Domain or Spotless or wherever might lock out opposition fans, so there is a chance it would be moved to a larger, better ground of the MCG.
As it stands, the rules are inconsistent and arbitrarily applied