I've never heard the White House raise this point, and for the life of me, I can't understand why especially since the the Democratic response would either have to be that a) 9/11 taught us we should wait for live threats against our troops to escalate until they become existential in nature or b) Hussein was justified in firing missiles at our troops.
It was indeed raised but in military/press circles. MSM did not elect to pick-up on this fact and broadcast it to the nation. There were articles about the pre-WOT firing upon our pilots WHILE our pilots were in the properly restricted zones. Saddam's army/henchmen had NO legal license to be in those zones, whatsoever. The zone was created post 1991 Gulf War.