And just how exactly does faking a moon landing disprove the Bible?
Well not just the moon landing, but several things they portray about space which are fake would make the Bible seem to be a lie. For instance the shape of the earth, that there is no planet except earth, the state of the moon, that the sun and stars orbit the earth, the presence of the angels, etc.
They also do it to try to prop up either the old earth mythological heresy and its associated heresies (ie: darwinism, aliens, heliocentricism, spherical earth, multiple planets, ancient astronaut theory, etc.) And then of course remember, look at the curious names they pick for their shuttles, the fake planets, and so forth. They choose the name of the pagan idols and demons. It's kinda obvious whose side they are on.