LOL, pretty much joined this forum finally just to say reply to the OP. What about FFXIII is considered western? There's no choices to be had, no interaction, no physics engine being seen, no open world, and no competitive online multiplayer or form of co-op. There's nothing there that I've considered to be a part of the western stable unless you're referring to the bulk of cutscenes which I'd actually consider a Japanese trademark personally. Is there even a western developed game similar to FFXIII that proceded the games release?
I think the biggest problem with FFXIII ultimately lies in bad management and struggles to adapt to modern tech. The game had a long dev cycle and is still a young installment in the final fantasy franchise. Whatever the case, Square Enix seems to be adapting and ultimately made a sequel that hasn't been met with articles detailing what went wrong. Whatever problems SE had, they've shown some signs that they are willing to adapt and evolve on current gen consoles. The question to ask though is how the next Versus game will handle. Lots of hype behind that, I got a feeling it'll help turn the FF name completely around.
