It's not a cropping method -- this is just how projection matrices work. Judging by the screenshots they didn't change the field of view when creating the projection matrix, merely the aspect ratio. Which is "correct" depends on what platformed they developed the game and how much they intended the user to see.

Honestly, is shacknews really stooping so low as to cover what hyperactive internet douchebags are bitching about? Come on now...

Dugg down for inaccurate.