It might have screamed, but it is not screaming.
Anthropomorphized it might be, but if the star screamed as it fell into the black hole, it did it a very, very long time ago. It is interesting how the article (and lots of discussion on similar galactic topics) are discussed as if they are current. The wave just got here, but the event is calculated to have happened 3.9 billion years ago. Or am I missing something?