We don't make endorsements, but beware politicians' promises about individual bus routes.
Melbourne transit guru Daniel Bowen confirms that nobody is threatening to cancel the 822. The other team's plan involves removing some twists and turns on neighborhood streets, so that the route runs faster and is useful to more people. As usual, that plan asks some people to walk further to a more useful service, as virtually any access-improving network design will do.
Those changes are fair game for debate, but remember: If you want to "save" every existing bus route exactly as it is, forever, then you're against almost any coherent plan and cost-effective plan to update and improve your transit network. This and this, for example, would have been impossible!