Shipped or Sold doesn't matter much to EA. They're a publisher, not a platform holder; whether the retailers they sold the copies to can peddle them off or not doesn't matter all that much (except for potential DLC sales and future retailer interest, of course).
Also, this sort of event consumes very few resources. One guy to edit a few values in a database, one to fix up some art from existing assets, and one to make a fancy news item. Nothing that would take more than a full man-day .