User blog comment:Argorrath/Call of Duty: Ghosts's "Team Leader Pack" and "Ghosts Insignia Pack" revealed/@comment-1055346-20130925153059/@comment-356904-20130926074337

Right, so they should complain that content made after the game went gold is being sold later.

Games aren't still being developed until a few days before release. For example, GTA V went gold in August.