If a person chose to re-contextualize the existing Vampire lore in a more Christ-respecting way, it would probably have to go like this:That game reads to me like a hostile parody of my religion. Not to threadcrap, I won't go into detail. Also YMMV--I know there are people who like it.
The fundamental Vampire experience is that of sinners whose moral failures manifest physically in their bodies. Many of these failures appear to be boons (with the feature of further entrapping the vampire into sin and worldliness) and many are just obvious curses, and above and beyond all else every vampires' inborn moral sentiment has been crippled by their transformation.
In a game themed around vampire-christian issues, the non-blasphemous interpretation of these acts and ideologies is that they are manifestations of pride: that vampires would invent an entire false history, an entire system of idolatry, to avoid admitting to the fundamentally inadequate nature of their moral existence. And overcoming the temptation of these organizations to justify sin would be the narrative function of their inclusion.