I do not know what the stats are regarding BFS/Beans. I do not live up there, live in beautiful SE Alaska. I can share "antidotal" knowledge of folks I know who used BFS/Beans before moving here. All of the people I know were alcoholics who ended up in Anchorage, out on the streets. Four of them, through connections at BFS/Beans, ended up successfully completing long-term treatment at Nugent's Ranch. Two others got sober, got jobs, married, and had kids. Most have volunteered to help out the homeless.
Jamelia Saied is correct when she says looking at the root of the problem and treating the problem is needed but the wait lists are unrealistic in getting the homeless into facilities. Thereare the folks who have mental illness who need out-reach help to get into programs/medication and services. 
Over the years I have met a former attorney, a architect, several nurses and former business owners who ended up addicts and homeless. No one grows-up wanting to be a homeless addict.