I actually want to point out that this is factually incorrect as of now.
Blizzard stated they were testing it out, and nothing is guaranteed. Now who knows if they’re just going to come back on Tuesday and say “Yup, it fixed the queues and Alliance didn’t suffer so we’re keeping it” and that’s a realistic possibility, but the system has not been reworked yet.
That being said the other alternative they have is to not enable it and allow faction transfers. Quite frankly given the debacle with the cost of the character clone service I wouldn’t be surprised if Blizzard claimed the backlash to this from the Alliance was too great so we’re going to let Horde buy faction transfers.
IMO if Blizzard was actually concerned about the health of the game they’d be giving away free faction transfers, but my guess is they’re going to find a way to milk this problem instead.