So I work with people experiencing homelessness, and can tell you with authority that there are often times when we know someone meets criteria for guardianship and would genuinely benefit from it, however they have no known next of kin and the alternative state-initiated process can take years.
Based on what I'm reading, they're not talking about seeking guardianship for someone just for being homeless, they're talking about people who have debilitating medical or psychiatric conditions, which often co-occur with homelessness. I think this is a good thing, and I wish my state would support enhanced guardianship capacity for the civilians who need this.
Brother, yes, we have. I have a list of people I can name who we helped house in my city through public housing or permanent supportive housing vouchers and who 1. refused to move in and lost the opportunity, 2. moved in but later decided they'd rather be on the street, or 3. were evicted due to behavioral issues. Most of these people would not meet guardianship criteria, but some definitely would.