They changed gameplay purposes because they might be lazy .
As for the story, you must understand that those features were meant to initially confused the reader to believing Movarth was a vampire. From the start, people were convinced he was a creature of the night until the very end, where it was revealed that the man in the chapel was a vampire and not Movarth. The priest starved himself for 72 hours and revealed his true nature to Movarth, who was stunned by the deception. When he "did not land the first blow or the last" it meant that the vampire defeated him. We thought he died, but his appearance in Skyrim meant he is dead, but just as a vampire
As for the story, you must understand that those features were meant to initially confused the reader to believing Movarth was a vampire. From the start, people were convinced he was a creature of the night until the very end, where it was revealed that the man in the chapel was a vampire and not Movarth. The priest starved himself for 72 hours and revealed his true nature to Movarth, who was stunned by the deception. When he "did not land the first blow or the last" it meant that the vampire defeated him. We thought he died, but his appearance in Skyrim meant he is dead, but just as a vampire
Hmmm... Makes sense. And I thought the did not land the first blow nor the last thing was the priest, my bad. But say if Morvath was the one who brought Porphyric Hemophilia to Skyrim, how come it changed to Sanguinare Vampiris? I can accept that it somehow did, but in 200 years as Crimson Paladin says. I dont think it is stated in this book when this all occured at all, and we have no reason to think this is related to the Oblivion Crysis either... But what changed it then?