These projects are so interesting from an architectural/engineering standpoint, but then they hit you with the "rethink the rules that say how much green space an apartment needs or where its windows must be." I highly doubt the best long-term policy for a city's residents involves even less greenspace and natural light.
I highly doubt the best long-term policy for a city's residents is to have a housing shortage and for many to live on the street because of natural light concerns.
Homelessness and affordable housing aren't really related in this case. These people can afford and get housing if they wanted to, just not in their preferred area. But it's not like they're gonna just throw their hands in the air and decide to be homeless because they couldn't find a place exactly where they wanted. They'll just move somewhere else they can afford.