I'm not even a fan of seafood, but my understanding is that anything of notable size will be deveined. Unless you're talking little popcorn shrimp sized things, which for that I think they "purge" and then call it good enough because with all the seasoning/breading there wouldn't be enough to notice.
Again, nothing I have any interest in eating, but I've watched a lot of cooking shows.
So, more red meat, lard, bacon fat, Jello salad with vegetables, cranberry sauce with orange rind and walnuts, and black coffee?