I think people are more upset about the fact that basic laws protecting the privacy of millions are not even discussed but when a few billionaires cry that they can be tracked a law is enacted swift-ly (hehe) and public data that the government collects is no longer public.
Maybe they should focus on the greater good.
And while your privacy argument could be a good point, a plane has no privacy and just like other registers the public had a legitimate interest to know.