Fire rain alteration

So, in the Ancient Temple dungeon, the Mistkeeper fight requires somebody to hit the orbs and that is typically a mage that can affliction all 3 solo. They seem to be the only class atm that can do that. With Ranger I am able to get 2/3 but the fire rain doesn’t seem to reach up there. Would it be possible to change the hit marker so it has a higher radius? That’s all that would be required to make it possible. Thank you