I don't know, I ain't a hardcore dark soul fan or anything, but I feel like Dark Souls is a game whose difficulty is a part of the experience, throw it at the window, and the player might not feel the intention the dev intented for the player to have at certain moment.
I understand your point, but here's my take.
In anime, I know that the subbed version is how it's
intended to be watched. Anime purists have told me this for a goddamn decade. But if they hadn't made dubbed versions, I never would have experienced any of it. Dragonball, Rurouni Kenshin, Gundam, Cowboy Bebop, Ghost in the Shell, Black Lagoon, all of them are shows I
adore and I never would have experienced them had they not lowered the bar for entry for me.
Fire Emblem, a game series I ****ing love, I only got into because Awakening added a casual difficulty and expanded their player base. I
retroactively got into the much more difficult Fire Emblems, but I likely never would have had Awakening not lowered the bar for entry for me.
There are games I'm a purist for-- I beat all four campaigns for RE2make with an S+ rank within the first three weeks of release-- but I'm not going to be snobby and expect someone else to play the game at its intended difficulty just because I can. If someone can't or doesn't want to put in the effort to learn the game inside and out, I still want them to experience it for aspects outside of its challenge. I want someone to enjoy Leon's terrible voice acting and the sweetness of Claire giving a little girl her jacket and carrying her to safety and the sheer first-time terror of seeing Mr. X lift a helicopter and stomp towards you with the intent to punch your internal organs right out of your body.
I find the notion of "you have to experience the FULL experience or don't bother" to be needlessly elitist and alienating. If you're a fan of a game, you should want to include more fans, not scare them away.