While I like games that have multiple difficulties to make them more accessible this is an unrealistic expectation. Difficulty settings can add a lot of extra development time. Its not always as easy as just adding a slider in the menu. There is a lot of Q&A that needs to go on behind the scenes. I do appreciate the games that put in the effort to flesh out a good difficulty system. Single difficulty games also have a rough balancing act as now matter what they do there will be people that say its to easy or too hard.