You are complaining about something without actually understanding what is going on. If you look at this and just go AMG I'M BEING NERFED, you aren't actually paying attention.

-Frostheim is talking about EXTREME soloing, which is a very particular hobby, consisting of taking your pet and soloing old raid/heroic content. Doing your daily quests is soloing. Doing Molten Core by yourself is extreme soloing.

-BM, if anything, has been buffed, because instead of all of those pet survivability talents that were choking up the tree, you've got items to boost your DPS instead. Previously, BM had the difficulty where the pet was so tough that it was hard to justify giving the spec equivalent DPS to MM and Survival -- if you could do equivalent DPS to those specs AND have a tougher pet (and, in general, an easier rotation), why would you ever spec anything else? By getting rid of those talents and making pets closer to each other, now BM can be a competitive raid spec again.

-The only "nerf" here is that the redesign of BM means that the spec does not interact as well with one weirdo set of gear that is nearly four years old. 2T5 does more healing as YOU do more damage, not as your pet does, so in BM -- where, as you'd expect, your pet carries more of the damage load than in the other specs -- 2T5 is not going to do as much healing.

In short: in 95% of the daily routine of a typical hunter, BM is in a better position now than it has been at any time since early Wrath: it's a good DPS spec, with solid damage and many interesting choices (and access to some wicked exclusive pet abilities through exotic pets.) In this one corner case scenario of beating up older raid and heroic content, BM falls behind, not because Blizzard has done anything to make it bad, but because it just interacts strangely with an old set of gear. That's all.