Govt should provide social necessities not the private market....you have to get past the concept of the business that you are in is just the same as any other business. It is not. Tenants are not your customers, they are your tenants. Housing is not a commodity, it is a social necessity.
At this point the govt could do anything. They've turned a low risk into a high risk.
I think people should be allowed to leave the market under the rules at which they entered it.
If people are happy with the direction the govt are taking and it's a viable business, then most will stay in it and indeed more will enter it. So heres no reason to stop people leaving unless of course you don't believe it's viable.