Batman is also not being released on the PS4 for another 6 months. But it's hanging in there with the 360's Titanfall.
Infamous Second Son comes out almost at the same time as the 360 version of Titanfall -- it's already up there and way, way ahead of it. Ground Zeroes is still 10 days away, and sitting at number 9.
I'm not saying the Amazon numbers will be representative of sales -- but I'm saying that the Amazon numbers absolutely do not paint a respectable picture of how the 360 version will sell. It looks awful.
Batman was just revealed though. It's in an entirely different point in it's pre-order life (currently spiking). Infamous is a widely anticipated PS4 game (with a userbase practically screaming for a new, AAA release). Ground Zeroes is also a next-generation game - once again for a userbase yearning for games. Titanfall 360 has the potential to spike in sales because of the positive reviews the PC/XONE copies will have. Once word gets out, there will probably an interest by those still with a 360. They'll have the option to pay $500 or pay $60. I think the latter will be the more popular choice.
Disputes over Amazon numbers is an entirely pointless argument. It's an argument in a vacuum that doesn't necessarily mean a thing. I still completely disagree with the picture you believe it to paint.