Whoever is behind the attack should just DDOS all of the media sites that have the leaked information.
In seriousness though, the attack probably will moderate the damage slightly, as I imagine Wikileaks was going to publish all the raw documents on its site, whereas the other sites will probably just give summaries of the important points. Sure, Wikileaks will eventually come back up and have all the raw data available, but the peak viewing time was going to be today. If I were trying to minimize number of eyeballs viewing the raw documents, I'd take this approach.
I think the newspapers will link to full copies for perusal, but include highlights/excerpts in their articles.
The biggest problem the DDoS creates, in my eyes, is that anyone reading about the leaks will go to Wikileaks.org and find a dead page and then forget about it, thus minimising their exposure to the other doings of Wikileaks.
