Why are they buffing Black Mage

[Wildsprite]

All other DPS getting nerfed for balance, confirmed by Camate in another thread.

link please.
because if the below is what you have to go on, it doesnt say anything about nerfing other jobs.
in duty commenced they made it sound as though they planned to add more single target spells to BLM, in order to do that and keep things balanced they would need to ADD to other jobs not nerf them.

Hello,

To put this into perspective a bit, this whole discussion about black mage adjustments began during a debate that started at NicoNico Chokaigi 3. As of right now, there are situations such as in the Second Coil of Bahamut where black mage cannot deal enough single-target DPS making it difficult for them to participate. The following is a quote from Letter from the Producer LIVE XIV:

We are planning to make adjustments in patch 2.3.

Black mage is purely meant for DPS, and the focus of the adjustments will be centering around increasing their overall DPS on single targets. However, as they are already very powerful when it comes to AoE DPS, they would become too powerful if we just boosted their single target DPS. Our goal is to make adjustments so that they're not immediately overlooked for trials and duties such as the Second Coil of Bahamut simply because other jobs are more advantageous; however, instead of simply enhancing black mage, we’ll be making overall adjustments to balance in relation to other jobs.