Well like any other organ it's cleaned or should be) before consumption anyway. I've heard of people eating brains before! Gross, the brain isn't even meat, it's more like a mass of nerves and rubbery spinal-like material
Sort of another reason why I think most is an exaggeration, actual intestine would be a better quality I would imagine. I don't know if I've ever tried it since I always check the ones I buy myself, it would have been somewhere else. I peel off the casing whenever I make them, so Casing itself grosses me out.