Let's be honest here whatever they reported was always going to be twisted by some. If they say shipped people will say shipped to stores. if they say sold people will say sold to stores. There is no way they can win really.
As others have pointed out they say sold 1m which you have to assume in the context it is written most likely means there are 1m people who bought it. It is a pretty basic number and i think they just wanted to say it had crossed 1m sales rather then be specific on detailed numbers. Saying you crossed the 1m mark is the actual point of the release. All the news sites will now report it. No doubt in a week or so they will say 2m etc.