I'd rather say MS continues to prioritise NA above anywhere else. That is NOT a good start if you want to make inroads everywhere.
For XMas just around the corner, I'd say European numbers are low, to put it mildly.
The simple question is, of course, What has been the weekly production numbers in Sep-Nov (for both consoles)? Usually these numbers have been insane.
It will work itself out once their new studios crank out the games. But I remember the 360 PS3 gen having a certain sense of balance and equilibrium. Each console cornered different parts of the world and thus ended on a virtual tie.
First things first, win back your former #1 market.