Now that I'm heavily mentally invested in their games, I am enthralled by their deep yet vague stories, but I'm constantly impressed by the visual creativity and aesthetic sensibilities. That screenshot in the article is incidentally an area I screenshotted myself just yesterday, although mine was more about the shadowy silhouettes of the statues in the foreground (not really shown in the image in the article).
Then again, I do that for many things. Video games, tabletop games and even non-interactive media like comics, books, mangas. It's probably a faulty switch in my brain, but somehow I enjoy reading about and looking at the art of X (currently and fittingly to this thread, Berserk) more than consuming X.
The key is that there is probably a fairly uniform consensus that the art direction is good, while the topic of game difficulty is a more volatile topic and one where there is more room for debate.
And, of course, most forum users cannot brag about how beautiful the game is, but they can implicitly brag about how good they are at the games by disputing the difficulty.
Or indeed explicitly brag by affirming the difficulty but making it clear that they did it with their eyes shut.
I mean that's what forums are for, right? Peacock feather displays?
Personally, I've never really played these games, but from what I've seen they don't look particularly difficult -- provided that you dodge within a certain number of frames, know your enemy before charging in, and avoid trying to play the games as you might approach something with faster-paced combat.
The devs say you're supposed to die -- to learn. Not all that difficult then? They're just tailored for a certain type of gamer, like most games.
I think that's true for many topics. Some people evaluate developers based on lines of code because it's hard to evaluate the value of the code. In sports, athletes are evaluated based on how fast they run, because it's easily quantifiable and understandable, even if that's not especially important to the job. People tend to focus on flaws, IMHO, for the same reason.
And I think it's especially true in the arts. When people don't know what to say, when it makes them uncomfortable, they find the flaws - easy to talk about, and it dimisses the uncomfortable thing from the conversation. What makes art art is hard to define, unquantifiable, and often challenges our understanding.