The problem is, _your_ personal experiences pretty much deal with the way _you_ shoot the gun. The video shows exactly what is wrong with Glock: The physics needed to cycle the gun rely way too much on the force the shooter is applying with their gun hand. This is why I am becoming more and more a non-Glock fan. While they are 99%, with _me_ shooting them, I know other guns that will likely be better. If anyone believes this isn't an issue, it is easy enough to repeat that test.
I would like to know if maybe it isn't a gun issue, but a magazine issue. Glock has tweaked their guns here and there, but I know they are on their fourth magazine design. It could just be an issue of either the slide spring, magazine spring, or both.
I don't think that the laws of physics would allow limp wristing to be solved without either making the recoil spring so weak that the gun would beat itself to pieces when held solidly, or making the lower half so heavy as to prevent too much movement during recoil so that the slide could cycle the whole way. someone earlier in the thread said that a pistol should be able to cycle properly no matter how little pressure was put on the grip. I don't see limp-wrist failures as a weakness of any gun design, but as user error.