Similar like grass fed beef and dairy is a sign of quality and "naturality". I look forward to the day when insect fed chicken becomes a sign of quality. Because insects are part of a natural diet for chickens.
It's actually a welfare issue for chickens. They have feathers, and they molt. Just like hair, feathers need methionine. Methionine is very hard to get solely from plant sources. If they don't get enough methionine they eat each other's feathers, not just the discarded feathers (which left on their own they do normally).
A chicken eating an insect who ate a plant could produce higher quality feed and thus chicken than if the chicken ate the plant directly.
An interesting thing is solar farms are maybe 30-50 times more efficient than corn. So the above isn't insane on the face of it.