Basically, at this point, any secondary effect caused by 'pulling' the steering wheel is now allowed. I think that's why Red Bull wanted it queried.
If Newey can work out an aero advantage from pulling the steering wheel, it'll be on the car.
For what it's worth, Missed Apex Podcast, who have a few contacts at Red Bull, said today that Red Bull actually have their own version on the car. Perhaps they've misunderstood something, but from my point of view I imagine Red Bull protested it knowing it would fail, but simply wanted in writing confirmation that any secondary effect is allowed.