I'll take a look at that article on my phone later. I can't access that site without a VPN.
I grew up in public housing. Thankfully Toronto never got into the project idea so public housing generally was incorporated into neighbourhoods. There were of course spots of public housing and apartments with all the issues that go with them. Projects are a really bad idea.
Australia did projects however. Outer western suburbs of Sydney were notorious. My wife lived part of her early life in one of them. Those projects have now been bulldozed and new modern housing has been created. Gentrification reaches ever further out. Public housing these days in Australia is now different but like everywhere else, demand outstrips supply.
One of the interesting quirks here in France and it's good for renters but bad for the people who invest. You can take it as one of the more socialist ideas in France. France is more socialist than most countries.
In France renters cannot be evicted in the winter time, it's against the law. Also to evict anyone is a very long and drawn out process.
So that's one of the reasons why renting here in France is so painful. That and they haven't changed their renting criteria to deal with the idea of contract workers, even in Paris. Modern times old ideas about work. Yeah.