Because Adam is SUCH a moon landing geek, they went to great lengths to be very accurate on this one. Much less silly than normal. No, "Well that didn't work so let's blow it up!" Very precise on exactly what they were proving or disproving.
For example, one of the claims they disproved was that the multi-directional shadows in
this photo could only have been produced with multiple light sources (which the moon does not have), and thus it's proof that it must be a set. So they proved that they could recreate the photo with a single light source (the key being that the surface of the moon is not flat and the contours make it APPEAR in a photo that the shadows are at different angles). After which they very precisely said, "Now, we know this doesn't disprove that it was done in a studio, seeing as we just did this in a studio. ALL we were showing is that the claim that the photo could ONLY have been done with multiple light sources if false and is therefore not proof that it IS a studio shot." It puts the burden of proof back on the conspiracy theorists, which is where it should be.