In a debate, questions could be tailored to the specific issues that the states are dealing with during that month. If a party wishes to openly declare that they're willing to compromise outside of their usual national stance in order to appeal to a certain state's electorate, they can do it. It's not like showing a little bit of ideology would hurt Labor's bottom line anyway.
And of course, it will let parties clarify the narrative when doing regular campaign events so that dishonest attacks can be highlighted since we've seen Labor attack other parties based on issues that are irrelevant to the game.