Who cares.
In fact, the 360 port will probably make things worse. FFXIII already seems to be a clusterfuck. Maybe bringing it to another system might have been the cause but information has been sparse and adding a new character is supposed to be news. Meanwhile, FF has lost most of its relevance in the scheme of gaming. Once, it was the premier franchise and now, after numerous port jobs and shaky sequels, it has lost a lot of its prestige. Only hard up Sony fans still pretended like it was a huge franchise. Another game that was supposed to make the 360 sales grind to 0, like Haze, Uncharted, Virtua Fighter 5, Metal Gear Solid 4, and Lair were supposed to.
I'd almost be willing to bet that it was out of financial need that the 360 port was made.