It's kind of odd, because it feels like they do sell promotion at the very least. For instance, Immortals of Aveum (the new EA game) is constantly shown on my store homepage, despite it being more or less a commercial flop. I know that page is customized, but I would have figured that game would be replaced by others now if the selection was fully organic. I had just assumed EA paid for some agreement that would promote the game on the main page for a set amount of time.
I'm sure it's just coincidence, but their statement just surprised me since the store feels like it promotes specific games already.