I wouldn't call it 'lack', merely the absence of too many cut scenes. And I must admit that I very much like it like that. When a cut scene happens, it feels special. Everybody is bound to remember first playing Biohazard/Resident Evil - that first zombie encounter might look laughably low-fi these days, but boy did that sudden little exposition scare me into a mumbling, stumbling mess.
There are short introductory cut scenes as in non-essential pans with some gut wrenching and mind numbing orchestral scores before just about every boss fight.
That's plenty enough for me. I could do with some more orchestral music, but I absolutely don't need more cut scenes.
The first cut scene in Demon's Souls, once the 'real' game begins is probably the red dragon one. That one just blew me away, instilling me with fear and anticipation.
In Dark Souls - depending on your approach - the first cut scene is probably the Gargoyle boss one. No matter how long it took you to get there, the first time it happens it's bound to just make you want to run away. I like cut scenes to have impact, not flood you with useless information and over exposition of annoying characters that really only just take away from the actual game play experience. I started playing DA 2 because I quite liked DA:O. I stopped playing DA 2 after maybe three hours. That's about half an hour of actual gameplay and the rest was filled with Oksana the Ukrainian dominatrix and some shaved dwarf. A shaved dwarf! How original! I burned my copy of DA 2, as I don't like to share the same universe with inane bs like that.
I played through both Demon's Souls and Dark Souls several times, but I am still forcing myself through Beyond: Two Souls. Some sections I play over and over again, because they allow me to feel somewhat human. I like that. I also think David Cage has one brilliant idea for every ninety-nine stupid and silly ones. While there are some scenes that genuinely touch me in places I generally don't like being touched, I find it really hard to consider Beyond: Two Souls to be a game. Both Souls titles we got so far are very much loved by me, so much that even their plenty of little faults and technical limitations are of absolutely no concern to me. Games like DA 2, Ass Effect or Ass Creed have stuffed me chock full of cut scenes, I think I am generally allergic to them now.
Demon's Souls and Dark Souls equate to gaming bliss for me. Stray too far from what they are and how they do things and you lose that magic.