Well what was the point of all this fake Satoshi stuff once again? Is Craig Wright looking to bring the price up or down? What is he going to gain for himself by claiming to be the real Satoshi and can he be prosecuted for submitting misleading information? I guess free publicity for Bitcoin is not a bad thing after all as this news has been broadcasted around the world to a lot of people.
As simplistic as your answer may seem, it could simply be this in the end, greed. Knowing ahead of time this would cause the price of BTC to fall, and also knowing ahead of time exactly when the blog post and corresponding media releases would be published, one could make an argument that people in the know could take advantage of an excellent shorting opportunity. Though I think they may have expected the price to fall further than the $20 or so dollars it did, if you had access to enough capital and shorted several thousand BTC expecting even a $50 decline you would stand to make a nice profit. Crazy theory, but no more so than everything else we have seen today.