Disagree,
We shouldn't be going for the aim to "just get it onshore first", and then fighting a rearguard action. We should press to test in the courts of Australia before hand and delay the signing date until it's resolved. I think there's a fairly high level of confidence that given we're deemed Australian employees etc for tax after last years court case, that we'd be protected now under Aus employment laws.
Personally I'd rather go on the attack now rather than play defence once we're onshore.