Quote from Blizzard staff
Loot from clams now stacks correctly!
Finally! Solid patch 3.1 change.
Nerf healing, because healers get spots in raids because they can heal.
As you well know, assuming you read the thread, this was a case of a class or spec wanting a unique buff to guarantee them a raid spot. It wasn't enough to bring *a* buff. They wanted a unique buff such that their guild would say, for example, "We have to take a Retribution paladin or we'll be really behind."
This change could make sense depending on how they will go about this. If they buff BoW and Mana Spring Totem so that they have the power of both combined, then it might be a nice change for 10-man instances and below. A slight buff for 25-man instances as well as that you won’t have to stack shamans for maximum mana regen. Downside is less totem options for shamans in a raid setting. If they don’t buff these spells then replenish will be even more mandatory, which doesn’t make sense. It would be nice if the shaman totem was stronger than BoW after talents, but without removing BoW. Then shamans would have a reason to use their totem in raids, and BoW still makes a nice buffer.