Ok, that made me spit my coke on my monitor.
Having been at Disney when 1st gen
MDE rolled out back in 2012, I'll just say, that is wrong. The nightmares I had trying to check in to the resorts, ohvey! Disney and redundancy plans do not go in the same sentence. They have proven that many times. I'm not even sure I believe they do any live testing in a lab first.
Or even just think back to the fall. When they had a system update they tried to roll out to the reservation system. How long was it down totally, where you couldn't book anything online?