If a new game came out and the reviews stated "Easiest game ever, requires no effort, you can clear this without knowing what you're doing at all!", that would probably be a rather low review and most people would avoid that game since it sounds boring.

Yet in MMOs people defend that to the death. I get the feeling the players who love extremely easy content are the type of players who run through things with cheat codes. That's what FF14 is, a single player rpg with cheat codes enabled most of the way.
We're also stuck in this strange cycle where easy gameplay has resulted in the game becoming dull roulette chores every day, but now we fear difficulty because it might make those chores take more time and we hate them. We've ended up so far from just running dungeons for the challenge and fun of running dungeons.