Of course, the downside is that you might not have Gale or Shadowheart or anyone else to react. So either, some things like that would be missing, or Larian would need to cover possible companions AND narrator at the end, if there is no one to react.
Constant presence of narrator, I think, is pretty intentional as it's a voice of our DM. Not sure if it is the most natural thing to have in a PC game, but it was rather entertaining in D:OS2.
