Because Google and Facebook made a deal to work together: https://www.wsj.com/articles/google-facebook-agreed-to-team-up-against-possible-antitrust-action-draft

Because Google and Facebook made a deal to work together: https://www.wsj.com/articles/google-facebook-agreed-to-team-up-against-possible-antitrust-action-draft-lawsuit-says-11608612219 https://www.wsj.com/articles/google-facebook-agreed-to-team-...