Well i dont want to be in a guild and raid whenever i want and get teh guder gearz! Boom: raidfinder
Well Blizzard im bored and cleared your easy raids. Boom: Pokemon
Well blizz i want my characters to all have the same abilities! Boom: Every character gets redone to look like a big dark grey pixel.
I've played as a troll, orc, tauren, now goblin (in that order) - and I have never felt the need that I would even be able to see the dps increase changing would offer before this tier. Due to beastslaying and RPPM, not due to berserking and blood fury.
Our guild would of killed Lei Shen heroic a week and half before we did if we were horde. +- 6% attempt = kill with horde racials on lei shen.
"horde racials are overpowered" yeah right, look at humans, every human has double dps trinket because they already have a racial trinket
It's hard to argue that it really matters for anyone outside of the usual list of world first kill guilds. They care enough to take advantage of every potential boost.
For most other people? That little boost isn't worth not playing their favorite race. I've got toons on both sides, but I'd never change my Dwarves and Gnomes to anything. They're my chosen Alliance races no matter how effective or ineffective their racials are.
My Gnome warrior is smarter than your warrior!
Noone is saying beastslaying is balanced, IT IS NOT. PERIOD. Beastslaying should NOT work on raid bosses. Dunno how many times do you need this stated.
Now IGNORING beastslaying (because, as i said before, it should NOT affect raid bosses) the difference with every other racial, be it alliance or horde, is within 0.5% DPS at MOST.
Surely you have some simulations proving that berserking somehow gives 20% more DPS than blood fury? Mind linking them for all to see?
Sorry but this makes no sense, world of logs has Alliance (not horde) as the highest DPS, if racials in horde were so "overpowered" as you claim then certainly the DPS meters would prove this, it does not.
There is a certain flaw in your logic.. so to answer the question which as others have pointed out you did already... There is no problem that needs fixing.
- - - Updated - - -
Our lock's troll berserking gave him significantly more Agony (and everything else) ticks on Dark Animus this week on a shorter duration fight, increasing his DPS by over 12%. Even if your own classes's DPS isn't affected as much, your raid as a whole benefits greatly just from overpowered classes reaping the benefits.