I despise Harper as much as anyone, but is this really a result of his awful policies or more so because he happened to be Prime Minister during the 2008 global economic crisis?
Let's not fall into the same trap as the "Fuck Trudeau" crowd, the PM isn't a supreme all-powerful overlord who has full control of the economy. They don't even have that much direct power over the Canadian economy, let alone global factors like the 2008 recession or the COVID-19 pandemic.