Graphical Screw up?

The first time you learn in the game that the ring-world was called "Halo" by the Covenant was after you save Keyes, before that it was just called "Ring-world". This is what I find interesting, one the first level (Pillar of Autumn) the Holo-panal Keyes is observing has the following image desplayed on it (see below). Why would it display this if they didn't know what it was called yet? Sounds strange to me.
So was this a Graphic Designer Error, or laziness, or something more?...