This is another example of bad combat design. It is also the reason why I don't even want to go to higher levels. As many people have said, "after X or Y level you get flooded with so many abilities" and so on. Why? Why continue on with this archaic game design? Look how many actual abilities this guy used and how many abilities he has on his hotbars and how many of them are on gcd. Look at how the combat slows down to a near halt within 10 seconds of beginning. We can literally see how crazily he is tapping those buttons on impulse, it is as if he wanted to make the abilities faster with those button smashes. It makes me feel like the gcd exists to make us look at the animation of later abilities.