That’s fine. The landlords still have the power to increase rent to astronomical levels in order for force unwanted tenants out.
If you can’t evict them, you can make it so they can’t afford to live there.
In Victoria, renters can challenge a rent increase “if they believe the increase is higher than the market range”
I assume, like with many renter protections, it’s a pain in the arse to actually do in practice, but it’s there, so they can’t just double your rent in one go to force you out.
Also, rent can only be increased once every 12 months in Vic, so landleeches may need to wait months before they can increase the rent by any amount at all.
Not that I doubt there will be some dodgy workarounds. I suspect landlords might try to abuse the “if the owner is moving back in” exemption, because even if there’s strong provisions - e.g. the property can’t be advertised again for at least 12 months - it still requires someone to be paying enough attention to notice and report any violations.
How much would it cost the Tenants’ Union to have someone tracking properties on the market and flagging any whose tenants have been evicted over the past year on grounds of moving back in, with a view to suing on behalf of the evicted tenants?