None of these things are new, true, but they're not common. It's not so easy finding a co-op to live in if you're not near a university, or, for that matter, even if you are near one, especially if you're not a student. If they're becoming more common, that's a trend worth broadcasting; hopefully it continues.
I'll agree that presenting it as a new invention, or something tailored for this radical new generation of "Millenials", is a bit obnoxious and misleading. But I'm still glad to see this sort of thing.