I mean the "Edmonton-Calgary corridor," which is certainly more spread out than the vancouver metro but is still a recognized connected urban region, at over 3

I mean the "Edmonton-Calgary corridor," which is certainly more spread out than the vancouver metro but is still a recognized connected urban region, at over 3 million people, is also not an insignificant chunk of Canada. I'm pretty sure you can find well over 11.5 million peoples'-worth of regions to pile up into a counterexample for what the post was saying. I think the point is that "across canada" is a broad brush to use for this.