That could be the case. I could have sworn it was longer, but I may be wrong. Either way, going by Amazon rankings, PS4 is still going to have a good lead over the XBO. PS4 has 4 consoles in the Monthly 100, at #42, #45, #77, and #99. XBO only has two and those are very low. #87 and #89. It may not be 2:1, mainly because of the larger numbers, but I can still see it being the same ~90K that it outsold it by in Jan.
Only going by Amazon, PS4 would beat the XBO handily. Only going by Gamestop, and XBO would win, no contest. Both are much closer this month to each other than you'd think.
Like I said, it's not guaranteed that the XBO would outsell the PS4, but their numbers should be pretty close to each other at the very least.
The Nintendo eShop rating Thread: http://gamrconnect.vgchartz.com/thread.php?id=237454