This is a really interesting question. Have been any logic answer or good explanation given yet? The question is, who invited him to this conference, so this person should know that he has something to do with Bitcoin.
Now we have to wait and see if this will be another story of Dorian Nakomoto. We still have not enough hard evidence pointing towards Wright.
His background is one thing but so they said about Dorian. But I gotta say that all facts presented by Wired seems pretty convincing so far.
One question which is yet unanswered: Nobody seems to have known him, but nevertheless, he was invited to the Vegas-conference. Why? Why was he invited, when the other participant's socks were of more interest to Michele?