I think they should be able to show the link, and like a normal one sentence link text, but not a large snippet, images, etc
That's what they're arguing about, it's literally the same thing that happened with Google news (and was negotiated) years ago.
Making insane laws prohibiting people to talk about facts they've seen elsewhere won't help.
You can create a Facebook account for free so that part isn't a problem. There's no consumer harm.