No, the aura is around the WHM, and at the top of the aura is a biggish glowing orb. After a second it does the explosion and the enemy on the left reels back from the damage (to the left of the WAR). He gets a small effect on him when the spell goes off, and the one in front that the WHM is facing doesn't get the effect until the spell starts fading away.
The reason everyone is facing the wall is because there's an enemy there that only the PLD is not attacking.
