Cross-Realm Battlegrounds... or not.

It seems like just yesterday (or was it actually yesterday?) that the cross-realm battlegrounds were the talk of the town. However, something seems to have gone wrong with the system, as illustrated in the screen-shot to the right, which was taken last night. One Arathi Basin up? One Warsong Gulch? One Alterac Valley? And interestingly enough, they're all full of players from my realm and only my realm. Now, I can't find anything about this on any of the official forums, but it seems to me that cross-realm battlegrounds are... well, not! Are cross-realm battlegrounds down for the count? Blizzard, say it ain't so!