I have made two graphs. The first is overall population growth. I have included both the raw growth and the percent of population growth.
You can see that population growth is higher than a few years ago. However, the really interesting thing is that it is much lower than during any of the previous booms. That is, it is hard to make the argument that unprecedented population growth is driving the boom.
The second graph is the interprovincial migration. This is a 4-qtr moving average. We're getting around 3500 a quarter whereas BC has seen around 10K per quarter in past booms. People are not moving here in droves. It is a trickle.
Let me make my point clear: Whereas in past boom cycles it might have been possible to argue that it was driven by huge immigration/migration/population flows, it doesn't look like that is what is driving the current boom.