The other team had 2 Mistweavers.
One of the Mistweavers had the flag and ran into his base and scored. This may seem normal "That's the name of the game" but consider this: He ran alone, he didn't stop moving for any reason, it was my rogue, another lvl 68 rogue, an arms warrior and a boomkin (all lvl 67) attacking him at the same time, and he managed never to drop below 50% HP, kill us all and came out with 65% mana (/dance and /laugh all the while).
Now at what point does this not sound overpowered in any meaning of the word.
Being able to survive an onslaught of two CC-ing rogues, a Boomkin and Arms Warrior (all in full heirloom i might add) seems a whole lot of OP to me and anyone else who has either common sense and/or has run into this issue before would agree.
I implore Blizzard to do some adjustments because its really hard to enjoy the game when you enter a BG and know you're going to lose because of the fact they have 1-2 Mistweavers.
Also on a side note: Priests at this level are almost impossible to kill as well, please look these classes over in the lower brackets. It seems sometimes the lower brackets get overlooked a lot.