The new laws are coming into force in the current election. It is a sweeping change impacting all councils. It makes councils much less representative - it means that one ticket of councillors can have 51% support but 100% of all seats on the council.

Based on the speeches, it sounds like basically everyone was against Labor on this, both the VEC expert recommendation, and also pretty much everyone in state parliament except Labor - see the linked hansard starting from page 30. That said, when the Greens proposed an amendment to it, the Liberals voted with Labor to defeat it, and the single-member ward thing became law.