There are issues both with his methodology and his presentation style, although it's the hyperbole and bombastic style of the presentation that's most annoying. All of the SHOCKING and excess is just unnecessary and purely to draw clicks and ad revenue. As for the testing, it's very limited and not terribly useful for real-world applications. If you have any knowledge of the various products used, in many cases the "test" cases used are just simply insufficient to show any differences between the models, so it's not necessarily the case that the specs are useless, but more that the test isn't useful for highlighting any differences. I personally own three different Studios (one base Max, one base Ultra and one fully loaded Ultra) and did my own extensive testing focused on photography use, and can assure you his tests are completely inadequate for a someone making an assessment for that use. Meanwhile if you spend any time poking around into more specialized testing, you'll find the same.
His conclusions on throttling and his fixation with wattage are completely misguided; without understanding exactly how the code in use is working and what is going on with how the AS architecture divvies up workloads for the GPU, it's impossible to draw most of the conclusions he is making, and in particular the strange ones focused on wattage. He's in a rush to make himself seem relevant and in the process makes the mistake of speculating on things where he has a best a basic working knowledge, yet he leaps to conclusions that are quite a stretch. These days you can get away with such things, because everyone will just move on the latest video with big flashy titles and ALL CAPS hyperbole. What's lost is real insightful knowledge from an expert perspective.