Realistically yes they should unbalance the difficulty of jobs and let those who like difficult rotations to enjoy themselves and those enjoy the ease to have it thier way too. At point there is enough jobs around that this can be easily doable. Really the only 2 things are holding this idea back "aesthetics" and "content difficult," basically "I want to play this job because how it looks but its too hard" and "These jobs make so and so content stupidly easy..."