My thinking, here, is that Sir Ridley was speaking to "John Q. Public" and the unwashed masses
I suspect he knew that it was one of the most discussed and debated issue within "fandom".
That's right, he does know, which is why his latest comment (if legit) shows complete contempt for the fan-base. His statement that the only link between the two films is the company who owns the spaceships is a balls-out lie. Either he doesn't know that the trailer was even released, is so senile that he can't remember what he did or said yesterday or thinks that his fans are all such morons as to swallow any horseshit that comes out his mouth.
So far I have been sucked in pretty badly by all of the secrecy, but this crap is getting on the nerves. I understand that they want to keep the debate raging for as long as they can, but its getting stupid now. There's are good chance that most of the spin about this film has been bullshit all along, especially in light of this latest contradiction from the man in charge.