Poor tenants are not renting new apartments. In general, you could say that new apartments are added to the overall stock so that's good for all renters. ITT however we're specifically talking about the kind of apartments that are rented by the poor being replaced on the same site by the kind of apartments that are rented by wealthier tenants. That is actually good for one group and bad for another group.

Widely anticipated wonderful new laws are usually chock-full of this kind of crap. Lobbyists don't try to step in front of oncoming political trains. They do successfully redirect those trains to their own purposes.