1. While Kojima never said (I think...) that Rising is a spinoff, he did adamantly say in the Sony conference that the PSP MGS isn't a spinoff (I forgot if we used the phrase "true sequel"). We do know that Kojima and his MGS4 team will work on the PSP version.
While I don't have enough personal knowledge and research (I hear people talking about the Famitsu interview) I think it's at least arguable whether or not Rising is a spinoff or "not a true MGS" sequel.
2. We know it's on PC, people just use "exclusive" out of convenience. I do agree that there is a double standard, and hypocrisy when some Sony fanboys (and the same with some Microsoft fanboys) say the exact same thing as you said. However, I think most rational Sony and Microsoft fans/fanboys know beforehand when a game is going to be on the PC or not.
As for FFXIV not being exclusive, you and I have no conclusive evidence, only suspicion, common sense, and history, all of which are not 100% objective proof. MGS4 turned out to not be ported to the 360, so not all "obvious" things happen.
3. I do think it's undeniable that the motion controls from Sony and Microsoft were an RESPONSE to Nintendo's success. I don't think Nintendo fanboys argue that motion control were invented by Nintendo. However Nintendo were the first to come out with a Wiimote.
As for statements such as "MS/Sony will fail" I do agree that it's not objective fact that either will, however I don't think that those people meant it as objective fact, it's obvious that they were writing opinion pieces.
