I don't like wasting my time trying to teach you and your ignorant bunch some accurate and proper football. Waste of my time simply because you either (a) never played the sport... or (b) you were terrible trying to play it. But here we are once again, so pay attention...
Look at the screenshots. Tell me where is an open receiver for Dak to throw to? Look at CeeDee and Cooks underneath. They both are covered because they both ran sloppy and lazy routes! Kurt Warner even mentions it. CeeDee ran a lazy rounded route which did nothing to help himself get any separation early and to better help him open up the deep flats/sideline area where Dak was initially designed to throw to. You can't blame Dak for passing up throwing to CeeDee since CeeDee was covered early and throughout his lazily ran route. This forced Dak to throw to Cooks who also ran a super lazy and wrong depth route underneath in the shallow left flats. Remember, Dak had to get rid of the pass quickly (no more than 3 seconds) because he's got the ball at his own 5 yard line...and the Oline was getting beat around the edges as you can see in the screenshots and video. Had both CeeDee and Cooks ran better and more crisp routes to help themselves get separation early, this play would have worked either throwing mid-deep to CeeDee towards the sideline or short and underneath to Cooks on the comeback inside.
The INT in question starts @ the 9:05 mark...