Mostly it is the indigent
Somebody setting up such an indigent-friendly place would have attracted just as many people ten years ago, fifteen years ago, or twenty years ago. Similar places have cropped up in Florida, Seattle, and other places, most of them long pre-dating the mortgage crisis.
The reporter managed to find one person who's there as a result of foreclosure, and used that to try and make a point. Odds are excellent you'd get someone like that in any random collection of homeless at any time in the past years.
"Tent City Highlights U.S. Home Crisis" is, to put it generously, a misleading headline.