Nothing they can do about it. Players aren't contracted.
The women's seasons don't overlap so they can head home to play inter county after the AFLW season is finished.
Every so often a promising young male player heads down here which causes some resentment but it's rare. Very few people begrudge these players the opportunity to play professionally. And most end up returning home anyways and have the professional training which is a big advantage. Tadgh Keneally was noticeably fitter and stronger when he went back to win the All-Ireland with Kerry. Likewise, Coor McKenna. He was a big reason Tyrone won the Ireland in '21. So there are also benefits for GAA teams when the Ozzies return.