1) Six of the last seven months have seen economic contraction. There's no reason to think that's going to get better soon, given what's happening to the global economy, China and commodities. Oil has continued to get cheaper, commodities have continued to go down, and China's economy is getting sicker.
2) Canada's real estate bubble will be popped by the recession. That'll make the damage a lot worse. The constantly rising housing market was contributing temporary, artificial growth to the economy for the past decade.
This is going to be a drawn-out downturn. China is going to have an extremely difficult ten plus years due to their debt burdens, and the fact that all the easy growth ended years ago. The historic cheap dollar years from 2002-2014 are not likely to return, the high dollar will continue to put pressure on commodities, and countries dependent on commodities. Canada won't grow again unless the dollar drops, or the global economy booms, either of which would send commodities higher.