At least Dark Souls lays out it's rules and sticks by them.
As a player who very much enjoys Dark Souls, I don't really agree with that statement, mostly with regard to how NPCs handle poise and poise breaking.
Black knights can take a couple slaps from a heavy blade and only be staggered by maybe every other swing, rather than every swing. You put on black knight armor? You get stunlocked by a two-handed claymore easily. And they can run faster than you on top of that? This is without even getting into the realm of bugs messing up consistency (I'm looking at you, irretrievable Iron Golem slam-off-the-cliff death souls).
And even in pvp it hardly "lays out its rules." The game will never
explain the concept of "dead angle" attacks, for instance, or the mechanics of negating backstab damage by dealing damage to your attacker just before they can backstab you, or a number of other tactical exploits you pretty much only learn by reading community chatter about them.
I'd call it more of a rules scavenger hunt where you figure things out the hard way, think you have something figured out, find out you didn't really know as much as you thought you did, repeat that cycle until you really have things more or less pinned down.
@SinXAzgard: indeed, which appears to be the general consensus regarding Dark Souls from what I can tell. I don't personally find it nearly that aggravating, but I've seen some gameplay videos of people who do. And, most of the time, if you're starting an area over, it's your fault. Bugs pop up and do weird things to kill you once in a while, but they're the exception, not the rule. (Exception: pvp, where exploiting bugginess in the game seems to be the norm.)