User blog comment:Draevan13/Thoughts on the ESO Pre-Order reveal/@comment-9062114-20140131194129/@comment-1600847-20140131195606

I don't know why Zenimax bothered restricting races to certain alliances at all if they're planning on doing this with the pre-orders. It seems they were trying to build up some sense of racial pride within each faction, then gave up and said "Screw it, any race in any faction."

If it were ONLY Imperials who could join any faction, it'd make a bit of sense. Their province is being governed in essence by Molag Bal and his Daedra+undead minions, it wouldn't be out of place that they'd seek out someone who's standing up to the Tharns. But a Nord, Breton or Redguard in the Dominion? Not at all.