The distance between Oslo and Bergen is smaller than the distance between Toronto and Montreal - which are fairly close to each other in Canadian terms. Look at your population density maps of the two - Norway has most of its people clustered around Oslo, whereas Canada has a wide spray across the southeast. The distance from Hamilton to Halifax is basically equal to the length of Norway, and it's only a quarter of the way across the country.
In any case, if you speak to travelled "Big Country" drivers, you'll find a vein of amused stories at what plenty of Europeans consider to be 'long drives'. And did your Norwegian cover that distance in a day or two? Because it's a meaningless statement without knowing how long it took to get there - it could even have been shipped up there (in theory, of course).
I have a driving endurance of about eight hours and I consider myself a 'middle-distance' driver here in Australia. Plenty of folks here can drive 12-16 hours, though more are like me. The 16-hour people aren't all that common, but neither is it particularly remarkable.
Apparently country size and population centres are anecdotal, dismissed with a hand-wave? Besides, your 'real facts' video tells us pretty much nothing about the differences between Canadian and Norwegian driving habits, and whether the vehicle is as suitable for Canadian conditions as for Norwegian. "Suitable for Canada" is not just "the vehicle can drive in snow".
A 300km range with a long refueling time is a considerable factor for Canadians, something the video says little about. The distance between Toronto and Montreal is about 6 hours of driving, which in turn is two times the cold-weather range of the Model S. Given that you generally want to refuel before you hit rock-bottom empty, and that battery performance will degrade over time, that means two recharging stops in the Tesla, where you'll have to wait for half an hour while the car charges. That adds an hour to your journey, and means getting out of your car (in the cold) twice when you can get cars where you don't have to do that at all.
I don't know why you're apparently put off by the idea that people in big countries with good roads have better driving endurance than people in small countries. It's no different to saying that the Norwegian public have a stronger maritime tradition and are better sailors. Far more Norwegians own or operate boats per capita than any of the 'big country' places. Should I post a video of Canadian fisherman to 'prove with facts' that there's no difference between the Canadian and Norwegian public when it comes to maritime choices?