1. Can they safely store valuables? If you have an apartment, it's reasonably easy to keep your laptop around. I'd wager that in a tent it'll get stolen eventually.
2. Is this temporary? The German government is expecting refuges to regularly visit the job center and to apply to job openings or to attend language school to improve their employability.
So if someone can shower, has internet access, can keep a work laptop without it getting stolen, and has been homeless for <5 years then yes, let's exclude them.
But my impression (based only on pictures in the newspaper) is that this won't include many tents in LA.