Hi there. I don't have any experience on feeding them to ants myself, but I think you might have a hard time doing so. I remember reading or seeing something about the insects laying eggs which are coated in a sugary liquid that the ants love. So, to a certain extend the ants actually look after the stick insects' eggs, by guarding them from other predators while they eat the coating. In my recollection the ants ignored the eggs after they had been picked clean, leaving them free to develop into new insects.
I am not sure how well that (sort of) symbiotic relationship has developed and if it keeps the ants from attacking the insects themselves, but it stands to reason they wouldn’t kill the goose with the golden eggs. If you pre-kill an insect things might be different though, so I guess it’s a trial and error thing?