See, this is why engagement and MAU are more important and more accurate than sales numbers will ever be. We don't need sales numbers anymore the concept is totally outdated. This isn't 1999 anymore, those pesky millennials are becoming adults *shudders*."It could be that installed base =/= sell through in EA's eyes. So replacement consoles sold wouldn't count and only people actively using consoles would count?"
I would say that probably this. Xbox X seems to be made to xbox hardcore owns who already have One S/One
And wouldn't be the first time that a installed base is different to total consoles sold, I remember people arguing about this and the RROD
Meanwhile Sony is over there like the mischievous kid in the corner stealing other kids toys to pad their numbers and look more superior than they really are. It's all a lie.