It's understandable... I'm starting to get the distinct impression (or 'get the hint' perhaps) that S-E are trying to shake off the expectations of certain 'traditional' elements in FF to give them more freedom, and have been doing for the past couple of games at least. They probably got tired of having to do things in particular ways because it "has to have" airship navigation, summons, etc. I bet we'll even see one without chocobos soon (FF8 came close to that already).
The thing that irks me the most about this (which I imagine is the closest thing we can deduce to reality without working at SE) is that 'they' have the attitude that you can change the series traditions to stuff that makes it more relivant to the game as an individual entity. But if you are doing that, why is the title of limits? Final Fantasy Thirteen? What could have less to do with the game? If they truly did value this creative integrity that makes them not have to pay homage in game, shouldn't they ditch the archaic title that has no relevancy to the game and have one that is inspired and fits into the game?

I know the reason the title will change is because FFXIII will move more copies than anything else you could name it. Having companies put profits first isn't anything new to me, it is what they are supposed to do. I just dislike having my nose rubbed in it.