Well, the proof would be in the temps. I didn't watch the entire 44 minute vid... Tho, if for some reason his card is getting different temps... then maybe he got a bad one? He should buy 10 more video cards, from EVGA and do the test on all 10, to see if his is bad! LOL!
Harsh reality is, I am sure EVGA is just slapping these things together... The bottom line is MONEY, if you want a better card with better cooling (copper cold plates) he should step it up, otherwise get in line! You are just buying the "good enough" version AKA consumer grade. If your thinking EVGA is gonna go out and hand pick and check every cold plate for high tolerances ...Guess again... I'm thinking the 2000 dollar kingpin cards have better tolerances. Again, it comes down to MONEY and if you want the cheap aluminum plate, or the copper one.
Don't want to step it up? That's fine, lube it up more with a bit more thermal paste and game on!