I watched some of it, but the title doesn't say aiming up close with a pistol is useless, it says aiming is useless. For an arms length emergency, I didn't know this was earth shattering info that point & squeeze is a good method, but I'm sure it's new to some. I'd suggest you contact the guy who made the video, he really should have worded it better, cause in fact, aiming is not useless 98% of the time.Did you happen to watch the vid and read the thread. Its about close life threatening situations. Where there is no real need to take the extra 2 seconds to get that perfect window frame line up. The extra time used to do that could lead to a knife in your neck or a kick to the nuts.
It is a skill you should at least test out in case you are in a hand to hand situation where you cant get the gun in front of your face to aim.