Wouldn't this just mean no one's a male or a female. I get that we develop female characteristics first in utero, then go to male if the y chromosome is there in most situations, but thats later on. At conception, the only cells you're producing are undifferentiated stem cells, not reproductive cells.
They basically convertered the space provided for the mens/women's bathrooms on each floor into a corridor with a number of individual small bathrooms, each with a toilet and basin. After the change there were more toilets available at any given time and they were generally cleaner.