I think you're speaking past each other. The comment mentioned no access to shower facilities at all. Go search Youtube for tiny apartments in Japan or Tokyo and you'll quickly find rooms for rent where bathrooms and personal or communal showers simply don't exist, residents must walk to nearby businesses or public facilities like libraries during business hours just to relieve themselves. This is not a desirable housing situation either.
I think a dormitory or barracks style housing is perfectly acceptable as a solution but putting the burden of supplying bathrooms on private businesses or implicitly requiring people shit in buckets in their one and only room is not.
I think a dormitory or barracks style housing is perfectly acceptable as a solution but putting the burden of supplying bathrooms on private businesses or implicitly requiring people shit in buckets in their one and only room is not.