Starting at the begining of Cata, every serious pvper rerolled human because the racial was insanely overpowered. Now it is still strong, not just because of the 900 pvp power difference passive, but a large damage proc of your preferred stat is layered on top of it. If used properley, especially for a dot class, you can get a ton of throughput out of that proc. I get a 2 min leap, a passive 1% haste, and +15 alchemy, so don't whine and say your racial is underpowered humans. I agree addint pvp power to medallion would fix this, as human will remain an attractive class especially for healers (3% spirit is pretty nice).
Also on a side note, those who believe medallion is mastery only are wrong. I don't know if this is a glitch but at the top of the vendor UI where you can set your spec specific filters, if you set to 'All', there is indeed both a crit medallion and a spirit medallion as well.
Pretttty much this.
The human racial would still be very attractive without being completely op. As of right now anyone who pvp's as a non-human is at a noticeable disadvantage.