I think it's damage control. You can tell a tree by its fruit you know.
My WW posted the lyrics to "Oh Holy Night" on her FB Christmas night and gave a big speech about how much it meant to her. It was all I could do not to out her right then in there. I came really close to posting "Then why have you left your marital home, why did you sleep with another man, why did you give your heart to him, and why do you continue lie to your H, friends, and family? You basically went against (and continue to do so) everything Christianity stands for. Where does all of this fit in with your faith?" But, I didn't.