I have recently heard of an S/O who decided to leave his wife and newborn baby in Aus with the In Laws and commute. The ATO decided that as his family did not spend time in Hong Kong and he had spent more than 30 days in AUS for the past year, that he was a resident of Australia. Very big tax bill and fines.
So if you decide to move here for this job, you can apply the Hotel California rules. Those planning on commuting (or who are doing this currently) as part of the strategy for surviving the extortionate living costs in Hong Kong, maybe time to rethink.