Yes he did 1 vs 1 where he is able to straff and still get casts off. Thats works 1v1 but come time to box it is hard to get your minions to face the same way as you are kiting left and rights and spinning around to get LOS on the warrior while making some distance. Most ele's tend to turret which in Pandaria = Druids dropping big towers or AOE silence on your turret locations and then you are running out if you are lucky enough. If not I am sure a DK helped line up and AOE grab, into a column of silence, into a ring of frost with a frost bomb sitting on top of that as 3 DPS do the death dance and one-shot pop all CD macro's on the four - five elemental shammies that thought they were cool trying to box 5s.

But in that video he was pro on getting off the good stuff. Flashy... uggh.