Was it important? IMO no, true or false.
Anyway, ask yourself, who had the most to gain with continuing the Saddam regime and sanctions - the suppression of Iraq's oil production? Note Wilson didn't deny Iraq tried to buy uranium from Niger. He carefully said Iraq didn't acquire the uranium.
Apparently Mr. Wilson sits, for one, as a member of an organization funded by Saudi Arabia.
The Middle East Institute. Good point. I hate to be prejudiced, but when it comes to the Saudis, I am. Lying bastards, to a man.