In case you didn't read the rest of the article, it mentioned that there are a lot of edge cases that produce inferior results using this AA method as compared to more industry standard methods.
DICE gave it a shot and while it seems to be good for still shots, apparently it suffers in motion.
http://forum.beyond3d.com/showpost.php?p=1368088&postcount=165
Pandemic does get credit for being resourceful in hiding the technique's limitations, however.