In your list , PS4 is the only console that had absolutely 0 exclusives released or announced for Japan and no holiday at the same time.
So these sales are understandable and even normal in such context, it's not a relevant comparison at all, ( even without the fact we are in a generation where Japan isnt as strong as it was during PS2 era. )
But with first holiday and games coming, it will be better, much better.
Predictions for end of 2014 HW sales:
PS4: 17m XB1: 10m WiiU: 10m Vita: 10m







