Patch Available - JMS 3.12

So all I'm getting at from the video is that their is two rounds of grinding for 5 minutes then a mid boss then another grinding session for 5 minutes then the end boss and the grand finale of loads of exp.:f6:

Please tell me their is more to this.

I kind of thought of Dimensional Invade at first glance. The waves of mobs for 3 of the 5 rounds seems really pointless, but the exp at the end is pretty good, but not spectacular.