Wow! You are a partisan. Bush's speech was a detailed disection of Kerry's complicated position on Iraq and an affirmation of the administartion's position.
Why did it deserve coverage? Because Bush did not call him on it the night of the debate. The position the Kerry campaign cobbled together for him (an attempt to make sense of all his contradictory statements over the past few years - and gloss over the contradictions between the policy positions he currently purports to hold and his actual voting record for his entire career) was a surprise to us all, I think.
IMO, the statute of limitations on foreign policy discussions hasn't run out with the end of the last debate - despite efforts by the media and Kerry to turn the focus back to domestic issues and WMDs.