Odd that the video didn't work, but I'm on a video production machine and have codecs coming out my ears...
Anywho, there is video... LOTS of blms starting out with Thundaga, then Blizzaga. It's actually two parts... they get slammed the first time by some crazy attack (guessing from EV) that looked like Banishga 5000 and took everyone down to the red. The second time, they lose about 5 people, but win... same strategy.
It appears that, as Jo said, most of it's luck... depends who uses what 2 hour... I'm sure if HM started out 2 houring with NIN, things would not turn out so easy. I suppose, if R3's were all around, it would be a blast just to try... no pun intended.
Regards,