Well, I queued up at 6:40pm yesterday to go to the Gray Host / Alliance Locked campaign. The queue at that time was 119. By 8:30, the queue was at 29. I finally got into the campaign at 9:05pm and was able to play.
They should be removing the locks, if anything. It's such an unnecessary inconvenience.
They'll probably never do away with it though, as it helps sell alliance changes.