That article does say that the stats are not reliable as they picked a baseline that could only look misleading.
"That's because 2013 saw Canada's lowest rate of criminal homicides in 50 years, and the lowest rate of fatal shootings ever recorded by Statistics Canada.In 2013, Canadians killed each other at the lowest rate since 1966 — 30 per cent below the average of the previous three decades. Statistics Canada's homicide report for 2013 clearly identifies it as a record-breaking year."To be worth much, a report based on sampling must use a representative sample," wrote Huff.But 2013 does not represent any kind of Canadian norm. Choosing it as a baseline could be seen as an example of what statisticians call "selection bias.""They obviously picked the one year where it was lowest, so as to maximize the impact, the one year to make the change look most drastic, essentially," said Pierre-Jérôme Bergeron, who teaches statistics at the Department of Mathematics and Statistics at the University of Ottawa."