UC and supported exempt accommodation and Supporting People grant

There are several threads on universal credit and supported exempt accommodation so apologies for starting another one. However, I cannot find one about what happens to people in supported accommodation that falls outside the exemption under the pre-1996 rules, or about Supporting People grant.

To summarise, if you are in supported accommodation that counts as “exempt accommodation” your housing support will still be paid as part of housing benefit rather than as part of universal credit housing costs. ‘Exempt accommodation’ is
•  accommodation provided by a housing association, registered charity, voluntary organisation or non-metropolitan county council where the claimant is provided with care, support or supervision by the landlord, or another person on behalf of the landlord
•  a resettlement place

And http://www.rightsnet.org.uk/news/story/DWP-reviewing-welfare-reform-rules-for-homeless-hostels-and-refuges/ explains that DWP “officials are working closely with other government departments and key stakeholders to develop workable solutions, through a change to the definition or other means, without increasing current spend.”

But where does this leave people who fall outside this definition and who have service charges for support?

There is DWP guidance for landlords at http://www.dwp.gov.uk/docs/universal-credit-service-charges-guidance-landlords.pdf on UC service charges for social housing tenants and owner-occupiers of working age. It replicates the divide that Supporting People grants created in 2001 between eligible service charges and “charges for any service not connected with the provision of adequate accommodation” which are not eligible for HB or UC.

One question I have is, as there’s already been this divide for a long time, how does the issue arise for UC and HB in the first place? Whether it is exempt accommodation or not, haven’t the ineligible service charges been paid under Supporting People since 2001?

Also, what happens in supported accommodation where wardens and scheme managers are providing services that are not eligible for HB or UC and it’s not exempt? And what happens in ‘floating support’ cases which aren’t exempt? Are these support costs met by Supporting People grant (and how long will it be before this ceases to exist)?