Although for an organization and infrastructure the size of Yahoo's this may have been a big event, in my experience, this was a "stuff happens on the Internet" sort of thing.
Move along people; there's nothing to see. It is not the apocalyptic event that Netcraft is making it out to be. Google burps and barfs all the time, and everyone grumbles. But there is no need to run in circles and scream and shout.