If all the parties agreed, we could say okay, everybody agrees; it's good. My answer is no, because the political class as a whole may have interests that are different from those of the people of Canada as a whole. If everybody votes to keep expanding Parliament and so on and so forth, it may be good for the political class. The first law of democratic reform is that it tends to favour incumbents of all stripes, so I think there would still be a need to have it vetted through a referendum.
On September 20th, 2016. See this statement in context.