XP off ques have been broken in the past after major patches, it takes enough players at the same time to que for like a WSG only and not get games or for match making to take excessive time to convince blizzard there is a problem. otherwise they will say, which they did 2 previous times this occurred "maybe enough aren't queing"
blizzards random BG selection and match making was also flawed in the past, where the system decides AV is the next random it's going to fill, you can have 25 ally, and 27 horde sitting in random que, and no WSG, EOTS, or ABs will pop
20-29 bracket has many other issues to consider that spreads players thin, some that plaque 70's and even 90's
- too many BGs spread players thin. WSG, AB, EOTS, AV, BFG, etc
- arena skirmishes
- new content , MOP just added to basic game
- more achieves possible, actually may be one of the major causes
- more items to farm
- more factions, exploration
- serious imbal when it comes to PVP in a 10 level bracket which scaling is not making up for
- holiday event, players focused on getting new items
numerous F2P's have actually been playing a long time who are exalted with WSG and AB. they want that conqueror/justicar title and are queing AV specific.
we knew patch 6.0 was going to give us more, sometimes more isn't better.