Oh dear what a bad post.
On the vampire part- Who better be the one to write it? A priest? A tasty human scholar? Someone so egotistical or money hungry that they write them selves anon? A Vampire is the most likely and unbiased person to write of this.
Akatosh IS the same as alduin. Bethesda Just couldn't be bothered to keep it that way so they changed it last minute . It's not technically feasible to have a Literal world eater now is it? (also- First born of akatosh could also mean that he was the first aspect of akatosh)
TES is not static; it's lore is ever evolving and being expanded upon. All previous reference to Alduin being Akatosh was never proven fact, but rather written speculation.
The fact that the
events of Skyrim prove otherwise is not so much Beth changing their minds, but rather building on concepts they never realy fleshed out before.
Beth has said previously that the books/written lore of Skyrim is not 100% factual truth, because they are written by
people.
People can be biased, deceptive, incorrect or just plain ignorant when it comes to writing books, myths and stories that have been handed down over generations get embelished.
A lot of legends that exist in our world are most likely based off real events and people that have been distorted over time, from a exceptional warrior to ending up as a demi-god ect.
Beth has never
shown Volkihar in a game consistent with what is written in that book (a single book btw, no corroborating evidence)
Because there has yet to be events in game depicting them, then there is no 100% solid lore on the subject.
This is why Beth making the Volkihar whatever way they are making them in Dawnguard is
not lore contradiction.