I don't want this to sound like criticism, but a lot of the length of this game is due to the Cinematic Dialog. It would probably only be 40-60 hrs without it, ie it's about the same length as PoE or Tyrany. Planescape Torment, or both Owlcat Pathfinder games have considerably more content and depth; but the Cinematic Dialog is part of what has drawn so much attention to this game and that takes WORK.
This is going to be the game of the Decade due to the marriage of Classic RPG and Modern Graphic but it sacrifices a lot of Act 3 and some companion's endings (namely Karlach) on this altar.