I appreciate your response and your explanation, but I disagree. The dispersal of responsibility from a tenant to a private landlord has no advantage over public housing. Tenants in the current market are afraid of rocking the boat because landlords are en masse holding them over a barrel. I like your theory that dispersing the responsibility from the state to market forces will help with regulation, but fortunately, we don't need to hypothesise because, as you noted, we already live in a private market and can see how shit regulation is, and how shit it has been for a very long time.
This incentive you mention doesn't seem to be enacting any real change with regulation. Sure, over the past few months, the state governments across Australia have enacted 'progressive overhauls' on tenant rights, but almost universally, these overhauls are ignoring the actual issues and are very clearly designed to just look like they're doing something. The Federal response is even worse. On one hand, they are forced to make miniscule concessions by the Greens to make their band-aid slightly less rubbish, and on the other, they exacerbate the pressures on the housing market by slashing taxes for the rich and boosting migration.
We've already tried regulation, and it has been an abysmal failure (to everyone except landlords).