You seem to be labouring the wrong point - Nobody is kicking the Nix out!  They are choosing to leave all by themselves.

Welnix are trying to screw over both NZ and Australia and line their pockets with dollars exchanged for broken dreams.
Meantime, NZ Football are sitting on their fat arses doing nothing.
Wellington supporters are dismayed, as they should be, but wandering about blaming the FFA for something, something, something isn't justified.

Australian Football, via the FFA and the A-League has been propping up a generation of pro football in New Zealand.  It's money, time and effort that could be invested in expanding the game in their own jurisdiction.  The pressure was growing 3 years ago and the response hasn't been great.  The FFA quite cleverly killed off the "your competition needs us" shit with the initial Southern Expansion bluff.  (Oh the hand wringing horror from Fox pundits too dumb to work it out).  Now it's clear there are nearly a dozen ready to go replacements if Welnix can't lift their game.

If their only response is to be arrogant and rude to Australian Football then sorry genuine NZ and Wellington fans, your owners can fuck themselves.  They are fucking you over but they won't get the chance to do that to their other benefactors - Australian Football.