This administration is locked into a struggle to justify the entry into the war. We're not talking about "whiny armchair pundits". We're talking about political realities. The Vietnam War was not lost on the battlefield. It was lost in the political arena here is the U.S.
Then not providing information to their opponents may be wise. Sometimes the best way to defeat an opponent is to not engage him, just keep getting out of the way.
At some point the repeatedly-answered "where's the WMDs?" mantra will get tiresome and the chanters dismissed.