Despite whoever is in power at AIPA they have always been fair in the long run despite short term hiccups along the way.
Just look at the Integration of TAA/Australian into Qantas.
I think Don might be able to shed more light on this but as i remember, Eastern Australian Airlines were then owned by Australian Airlines but the then regional pilots were never considered by AIPA for integration along with the Australian Airlines pilots, they were only interested in pilots who threatened their jobs, other jet endorsed pilots.