Interesting, grew up living among cicadas, and never heard of anyone eating them. Might hafta give them a try.
But if it's clean protein, it's likely nutritious. Chicken gizzards, hearts, intestines, feet, beef tripe, balut, insects (minus silkworm larvae, never could bring myself to try that stinky delicacy).... I have eaten all of those and survived. People who turn their noses up at those foods have simply never been hungry enough in their life.