I, too, felt that there was an extreme lack of initial dialogue playing a Priest of Eothas. Nothing with the war hero farmer or in the bowels of the once-holy place. Nothing with meeting Durance. On top of that, playing a sterile character (a godlike) I was asked if I'd ever born a Hollow child...
The game so far (I am going slowly choosing how I want my first playthrough to go, so I have not gone exceptionally far) is good, and there's a metric buttload of prose written (like for when you touch peoples' souls) but there's dialogue that seems absolutely missing or misplaced when you take into account who your character is. It's hard to account for EVERY permutaion, but for the most obvious (religious folks interacting on religious topics makes for a great example) they really missed the mark a bit. I don't think it makes the game bad, by any means, but the sites giving it a perfect 100 (or 10/10 or 5/5 or 4/4 or whatever) clearly didn't play through on a character who doesn't fit the mainstream, because it is glaringly obvious that there's missing dialogue. (And, honestly, it's glaringly obvious that they didn't have all the dialogue done at the same time anyway, because you cut from voiced to non-voiced a LOT) ...