Not trying to be a jerk either but plain an simple, cold starts are hard on engines. The colder it is the worse it will be. You can say it starts up just fine and it probably does but it is harder on the engine than a start in warmer weather.
I don't live in canada but I have worked in areas where it gets pretty darn cold and we would do all sorts of stuff to help keep engines warmer so they started better. Some of the diesels we would even "tent" the engine area and fire up heaters.
Obviously, do what you want but if it got that cold where I was I would be looking at ways to warm things up a little before starting. I know I notice a difference when I go camping in the winter and it dips down to single digits and I am starting my jeep compared to starting it in the garage where it stays warmer.