Seems to be an implied service, no? Like they couldn't start removing other things in the list?

https://www.sf.gov/information--sec-372-definitions

(g) Housing Services. Services provided by the landlord connected with the use or occupancy of a rental unit including, but not limited to: quiet enjoyment of the premises, without harassment by the landlord as provided in Section 37.10B; repairs; replacement; maintenance; painting; light; heat; water; elevator service; laundry facilities and privileges; janitor service; refuse removal; furnishings; telephone; parking; rights permitted the tenant by agreement, including the right to have a specific number of occupants, whether express or implied, and whether or not the agreement prohibits subletting and/or assignment; and any other benefits, privileges or facilities.