I watched that wayyyy longer than I thought I would, like most other people here lol
But it was still disappointing that he just hand-waved the two good fridges already having cold stuff (that's when I stopped watching). Anyone from somewhere with constant hurricanes knows that thermal mass is important when keeping a fridge at temp
Not saying you're wrong at all, but I just did the test and it's kinda funny that the title of this article would certainly have been one of the "fake news" examples.
Obviously the study shows that the test is useful (as you pointed out quite well!), but it's ironic that the type of "bait" that they want people to recognize as fake news was used as the title of the article for the paper.
(Also, not saying the authors knew about or approved the article title or anything)