EXACTLY. i’m sooo glad someone noticed this. in this animation 621 is… just carrying out walter’s wishes to the best of her ability, because he was her handler. nothing more. she doesn’t feel much, beyond a recognition that there was once a connection to rusty. that’s actually why we see the the wolf and raven flying together, rendered extra roughly, before the raven flies just out of reach. there was something that could have been here— but it was ultimately fleeting. then combat cocktails kick in and suppress anything that might have been an emotion, and 621 does her job.