I am curious what the actual CoD split was including bundles. I am not surprised that it sold better on Xbox One given how much that brand has been associated with that console for so long.
Nevertheless, it seems like MS losing the 30 day DLC window didn't hurt them.
People say this but I think you need to look at last year and why Xbone had a bigger sell-through for CoD this year. Last year, MS still had 30 day DLC window. So most CoD only players bought a Xbone because of that reason. Now that the tables have switched, most normal people won't go out and buy a brand new console for one yearly game. The Xbone users are holdovers from last year, which is the reason it sold more. I think the next Nov release will be more sided for PS4.