[Achievement] Spheres of Influence should be raid wide

[Skye]

WoW Freakz link: Spheres of Influence
Bug description: Currently, the achievement is earned only be the player that collects the 5 orbs. Everyone in the raid group should get the achievement once all 5 orbs are collected.
Proof:
Retail:

Spoiler:

https://www.wowhead.com/achievement=12067/spheres-of-influence#comments

As far as collecting them goes, it doesn't have to be the same person picking them all up, and everyone who was in Eonar's room got the achievement when we did it. We only had 3 of us when we did the achievement, so we had one person waiting underneath Eonar's platform for Orb 3, and one waiting on the balcony for Orb 5, and the had our 3rd collect Orbs 1, 2 and 4. I'm convinced that with proper planning this achievement would be soloable, and since it can be done as soon as you walk into Eonar's room, or after your raid kills her and leaves ---