It's funny you picked the Asylum Demon as an example. At the first encounter with it you don't even have your class-specific weapon. Anyone who would try to fight it for more than a few attempts with the starting weapon (broken sword that does almost no damage) is just not treating it like an RPG.
Lowering the difficulty is not going to fix that. If the devs cater the game to players who can't be bothered to explore or read their own characters stats, it will ruin a lot of aspects that most fans enjoy. After seeing so many franchises release boring, easy, focus-grouped games (where the difficulty is just HP and damage multipliers) time and time again, can you really blame fans for saying "No, don't change it, we like the game how it is"? Almost all of the From Souls games are highly regarded classics, and sticking to their guns on design philosophy is a big part of that.
PS run through the grate door, pick up your weapons and plunge attack Asylum Demon, or pick Black Firebombs as your starting gift (only takes 4-5 to kill him)