the real reason is because bethesda were lazy when making them, this is a rip off of The Order (cyrodillic vampires) from oblivion
strange thing is, only a single blood-line made the pact with the deadric prince (i forgot which prince) to become weaker in exchange for the ability to remian hidden in the presence of humans, and that is not the blood-line in the game (different diseases different blood-lines). cant wait to see how this is falsely justified
Exactly.
Bad design decisions with a hint of laziness. It kinda feels like they just tacked it on towards the end of the development cycle.
Regardless though, I'm thankful they were included. Its better than nothing and its also a good framework for the modding community to improve upon.