If FB allows any news content (e.g. from news orgs that want their content to be listd for free), they must allow all news content (e.g. from news orgs that will want to be paid unrealistic amounts for it).
One also wonders whether Google would have put a termination clause in their contract with the news orgs in the event the law is repealed. And is Google really going to provide them notice of algorithm changes? Very interesting to see how that's going to be done if so.