Well it looks like theres no more rebuff on this weapon and im afraid the issue will be overshadowed by the appearance of the mythic bonesaw. This said those who own bulwarks had a lesson to learn. Never never trust that what you had today will be the same tomorrow. Nor the stats you have at the moment wont be the same tomorrow. This is what they call " balance ", This is what they want us to experience. Nothing else. You buy, you work hard to achieve and then you get screwed. Sorry but this is what had happened.

Released = bad effect
Rebuffed = all happy ( but some cried )
Nerfed = worst than when it was released.

They made a mistake and corrected it worst than when they released the weapon. This thing will happen again, when the new mythics arrive... believe me.