Oh, I think you're rather missing the point. They have admitted it. They've devoted their at least a portion of their undying to studying it their own ways. What could be more of a enthusiastic embrace of the subject?

[ consenting academics....and not even just youngbloods being asked to teach, but mature vampires who were really into it. ]

Vampires don't have the same hang-ups when it comes to these sorts of things as humans. When one truly has all the time they'll ever need, what's the point of hiding behind niceties?