Free Kick Specialization seems like one of the strongest abilities in the game to me, in part because free kicks are so common and because it doesn't rely on someone else to finish the job (through an assist). Boosting the accuracy of free kicks also seems to turn them into pseudo-penalties (i.e. a highly likely goal for the team that gets the shot).
Which begs the question: why is it rated at only 40 points, cheaper than the vast majority of other specializations?