People have evolved a natural protective feeling of disgust when confronted with the possibility of eating insects and worms. Try cultivating 100 mealworms, smell them and then put them in your mouth.

Slogans cannot overcome this feeling, that is why they are sold in the form of powders or stealthily added to food.

But I get that these powders are a great startup idea that requires no intellect, only advertising ("this is actually a good thing") and lobbying for dropping regulations.