There being 3 books, which was shown in "Army Of Darkness" and explains how none of these characters know each other. Ash, Mia from 2013, and now Beth from this movie are dealing with different books that all do the same thing.
Also apparently that was Ash on the first record shouting "it's called the Book Of The Dead for a reason!".
So he'll definitely pop up at some point in the future.
Also, the setting. A secluded cabin is creepy but the shyt is a horror meme at this point. They made the circumstances somewhat believable with it being a dilapidated building and a natural disaster cutting them off from the world for a night.
Lastly I don't know how the fukk people are clowning the kid for searching the bank vault, where money, etc. could actually be vs that moron from the 2013 movie reading the book after it literally said DO NOT READ THIS.