The NA do it differently?

I will add some description for what happens. Chirada is taken by the DPS to 7 o'clock, Supana is taken to 1, the Spiny and Garuda are taken to 11, Healers should be at 5.

DPS should all stack right in front of Chirada, this makes is easiest to avoid slip stream. This includes ranged DPS and positional Melee DPS. You will kill it plenty fast enough without the positioning.

Healers are at 5 because the unavoidable friction ALWAYs targets the healers. This is very frequently over looked. At the start the DPS should group at Garuda while the healers are in the middle of the rocks. Only the healers will get hit. When the tornado is around the outside of the area as well the DPS should distance themselves from the DPS. We usually have healers go to the west, Ranged DPS at the south, Melee on Garuda with MT at the North and eventually the ST pulls the Spiny to the East.

The Tank at 11 should stay close enough to the middle of the area so that the healers at 5 can still hit him.

I didn't honestly know there was another method for doing this fight. ^^