Yeah, I noticed too, but this could be a reflection in the general slowdown in the mail right now. Between increased mail volume due to Christmas, and the unprecedented strength of the Canadian against the U.S. dollar (for the moment anyway), sorting plants are more overwhelmed these days than is usual.
Last I read (a couple of weeks ago), there were already 3 postal sorting plants in the Toronto area alone that were backed up with mail due to an increase in internet orders for products from the U.S. Given that the post always slows down at this time of year anyway, we can probably expect more delays in mail delivery, I would guess at least until the New Year.
On the up side - if anyone's looking for casual work over the next few months, I am sure Canada Post will be hiring more seasonal Christmas mail sorters than ever! The hours can be strange, but the pay is good (I think somewhere around $20./hour these days....)