Isn't what they mean just "be able to export the model in a form that a) is portable enough to be taken and integrated by someone else, b) has a reasonable runt

Isn't what they mean just "be able to export the model in a form that a) is portable enough to be taken and integrated by someone else, b) has a reasonable runtime performance, and then c) explain how to use it to an application developer"? Those are high demands already. There are companies with excellent modelers who never actually get anything deployed because there is no one to bridge the technological gap between what they're doing and production services.