Nobody needs to read a conspiracy theory about this accident. His "report" doesn't match the official version because the official version matches the facts.
https://skeptoid.com/episodes/4099
He's assuming that the proposal is about transmission on airline flights, ignoring that it can also be about just plain spreading the disease.
I really wonder what's wrong with people who are going to airports in the middle of a pandemic anyway. What trip is that important? Asking them to test negative seems a minor inconvenience.
Another own goal for United. A nice letter of thanks would have been a lovely gesture. This is more like leaving 25 cents as a tip to show that you didn't like your server's work.