I see this used to deride a lot of politicians and I think it falls somewhere between revisionist and dishonest. People seem to have forgotten that intelligence reports at the time were confident in the Iraq link to bin Laden. Ironically, it seems that the people who forget or shrug off those reports are the very people putting the most faith in current intelligence reports about the actions of Russian agents. If Senator Clinton was assured, as so many lawmakers of the time tell us they were, that the Hussein regime was behind OBL, then of course she supported the war. I think a lot of the people criticizing the decision to have an Iraq War are too young to recall the national mood at the time.
There are also lots of holier than thou mentions of "Saddam never had WMD." This again flies in the face of the intelligence reports of the time, and would no doubt be comforting news to the many Kurds he killed with chemical weapons several years before the Iraq War.