Ttaskmaster
I'd argue that repetitively opening and then closing immediately like that will generate unrealistic friction heat, like rapid repetitive bending of metal, which prematurely knackers the mechanism components. No-one (aside from an idle idiot) is going to repeatedly flip the phone open and closed like that…
You don't really need to argue hard on that because it's true. That test is completely useless in all honesty.
The video shows them doing partial closures, which puts far more stress on the phone mechanism than a normal closure would. That closing mechanism is going to be under tension so that partial opening and closure will be putting more pressure onto the hinge system.
It would also generate heat and probably some sort of vibration damage too based on the way that was jarring the phone when it was in motion.
I'm also in the nowhere near 80 checks a day camp….