Well, things improved overnight. Hopefully this is the end of the troubles.
My book "In The Beginning" went from second place to third place in sales while the system was down. I was in first place a month ago and had been there for about four months. That was rather impressive for a novice author who is still learning how to write.
Hopefully this is not the swan song for my sales. I strongly suspect that the Ballantine Books were sold on the other sites on that backup DRM server, but mine most likely was not as I am a relative unknown. (Gosh, I used to feel that way in high school forty years ago.

I was not one of those star athletes who got all the attention from the girls.)
Ballantine has power and numbers and strength thereby, and my guess is that their sales continued during the outage. Nobody wants to tick off Ballantine.