The fact that this player was able to hit each button like 5 times just proves how slow the combat really is. Humans can push buttons pretty fast and you don't even have to be a pro to do it. The only reason why having a 1 second GCD wouldn't work in this game is because of the sluggish skill activation. You really notice it if you try to use more than two oGCD skills in one GCD. A fast global cooldown works fine in other games like WoW where skills activate instantly and reliably. Even oGCD skills and procs aren't an issue because pressing two buttons in one second isn't exactly impressive. Just look at how fast the average person types, it's the same thing.
I'm not saying we need to have a 1 second GCD but having these skill limitations removed would be nice. If an ability is supposed to be instant, it's not unreasonable to expect instant activation.
