The economy would have recovered without Trudeau's stimulus money (which is well behind schedule anyway).  Real estate has contributed heavily to recent GDP growth, and to the author's point, the oil shock has worked it's way through.  Moreover companies have been sitting on excess cash for years and there has been pent up demand for capital investment.

I don't think the GDP trajectory would have been much different under Harper, but of course we will hear Trudeau / Butts try to take credit for this as Scheer challenges their tax & spend ways (which in time will no doubt weigh on the economy).