You should read the other articles that abound in the Globe and Mail and other newspapers, as they explain clearly why the counting date for absentee ballots is held 2 weeks after election day.  similar to timelines in other jurisdictions in Canada. You will be illuminated and informed.  And since an official ie final count is always done to ensure no errors in math and etc, makes sense to do this when the absentee ballots are sure  to have arrived through the mails.