I don't mind the existence of this thing as much as a lot of others seem to. I'm personally not interested in reading the back story of every one of the main apostles within the manga, I'd kind of prefer that stuff be off to the side and only consumed if/when you choose to do so. That said, if this thing is as polarizing as it sounds (sacrifices offering themselves up? What?) then that'll be very annoying. I'm eagerly awaiting a more thorough summary once those capable have the chance to put the time into this thing.