Just for interest's sake, have a read of this case from the FCC: http://www.austlii.edu.au/au/cases/cth/FCCA/2016/657.html
It's interim only, but gives a good idea of the Court's approach to alienation.
This is scary. It shows who the courts are 'handcuffed' in obvious alienation cases. The fact is that removing an 8 and 10-year-old would cause trauma. On the flip side, trauma is caused to children when they are taught to fear those they love. The Mother here is obviously a severe alienator in my opinion. She hasn't gone to the 'sexual' claims yet because she can't when the kids haven't seen their father.
My thoughts are that these kids should be taken away at Final Trial. They should use a program like Family Bridges in the States. They have intense workshops to reunite 'rejected' parents and their success rate is over 90%. This pussyfooting around with some counselling here and there, while leaving the child with an obvious abuser, is simply flawed and irresponsible.
Check out this workshop
Do we have anyone trained on this in Australia?
Family Bridges: A Workshop for Troubled and Alienated Parent-Child Relationships