Nope, and I'd like to know how such high temperatures were maintained historically in a chilly like Norway. Sounds like far too much effort therefore very unlikely to have been generally practiced.
I suspect a lot of blame is attributable to a minor faction of the 'craft brewing' fanhood. The minority who like to be different and stand out like sore thumbs celebrating weird, funky brews. The weirder and funkier the better; according to them. Craft beer arrived very late in Norway. It only got popular several years ago. Up to this point about 99.9999999% of Norwegians had never heard of so-called 'traditional Norwegian farmhouse ale', the weird, funky brews no one dared to discuss in Norway, because they were crap? Now - according to the mechanics of an online Nordic propaganda machine - it's 'the best in the test'. Sorry, but it's ****. That's the reality.