If you're five-boxing or less, not queuing as a raid is not the end of the world.
If you're doing more than one group, getting your whole team into the same battleground is quite important.

You can still use Oqueue for Rated Battlegrounds.
You can use it to find players for a five-man group, from multiple servers.

Ultimately, you could get a lot of people into a Vent channel, even way more than the BG allows.
And have everyone queue at once for a BG.
Then take the queue if a lot of people "ding" at once, or within a very short window.
Blizzard is not going to stop people from attempting to get a raid into a BG.
And over time the best solution to the problem will be found.

About the only way to really break it, would be to move away from Alliance vs Horde.
If it was half the total players are 'Red' and half are 'Blue', irregardless of their starting faction; or even better/worse, having a dozen 'Teams' in the same BG.
And the side you get in any given game is completely random and can change from each game...
Well, you could not determine a team in advance, or skew chance in favor by only joining games that pop near the same time as others who you hope to play with...