*Sigh*. A 2nd call to Stats-Can makes the quote below seem somewhat plausible
Today’s first release of the 2011 National Household Survey (NHS) data confirmed what we had previously written. It appears the data quality was so poor that Statscan decided to release neither data at the dissemination area (DA) nor the census tract (CT) levels. These are more commonly referred to as ‘community-level’ data.
At the moment Stats-Can is offering community level materials from the census as custom requests; they plan to release the data more widely later on, though have not given a precise date for this. Stats-Can staff have also informed me that census tract/dissemination level data from the the NHS is not yet available, and they have not been given a date upon which it will be made available.