Xbox 360 never got a Final Fantasy, Dark Souls, and Battlefield all in one March either.
It had a few good Marches for game releases. March 2006 comes to my mind the most... It had Ghost Recon and Oblivion + Fight Night 3 was still being pushed then since it released late in February.
It is a different release schedule that should bare some changes in how these consoles sell. Wouldn't it be even odder if these titles didn't move some more hardware than if PS4 gets a 400K March before the 360 did?
Again, I never said the games won't move more hardware. If anything that's pretty much what I've been saying for these months in terms of why the PS4 will be doing better than the Xbox One for the first half of this year. I simply said that I would be surprised to see the PS4 get over 400K in March.