He says a grand total of four words in KHI with Lance Bass. How could people find a way to judge his ability to speak, especially since KHI had an all star cast, provided original voice actors could not be cast?

Different actor in KHII, George Newbern, and suffice it to say, I'm rather indifferent to Sephiroth speaking in KHII, who says a grand total of something close to fifty words.