The recent ANU poll shows some turnaround in views on federalism:

Question: Some people think that in order to deal with Australia’s problems the state governments should
hand over some of their powers to the federal government in Canberra. Others think that the federal
government has enough power already. What is your own feeling on this? Do you think the state
governments should give some powers to the federal government, or do you think it has enough
powers already? If you have no opinion, just say so.

However I doubt there is any philosophical shift behind this opinion change. Rather, the apparent shambles in Canberra has undermined the federal alternative. The implicit lesson is unlikely to leave a permanent mark on public opinion.