I want to start off by saying that I really like that LSJ is doing videos like this that are different than the other oil videos online. It was an interesting video but I would also like to see the same test done with an engine for a regular street driven car as opposed to a 1300hp drag engine. For instance, maybe take a car that already has a turbo on it, and then add a lot more boost to the same setup and see what happens to the UOAs. I'm sure it would also show that stepping up to an oil with a higher HTHS would be better though.
And that brings me to another point, it would be nice to see that kind of test between two oils of the same viscosity, but one of them has a lower HTHS than the other. Example, vanilla M1 5w30 with it's 3.1 HTHS and M1 ESP 5w30 with it's 3.5 HTHS.