Everybody uses it, nobody specifies it
A bathroom inside a tenancy gets the standard that tenancy is willing to pay for. A shared floor bathroom gets the standard the building has decided on, which may have been set years earlier when the floor was configured differently or occupied by a single business with half the headcount. The occupiers experience the result without any means of influencing it. Nobody revisits an arrangement that was reasonable when it was made.
That is a governance gap rather than a service failure. It closes when somebody documents the current arrangement and gives occupiers a route to raise a change with the party who controls it. A tenant who knows what the scope actually says asks a specific question; a tenant who does not simply forms an opinion about the building and repeats it at renewal. The difference between those two outcomes is usually a single page of documentation.
