United, Delta, and Other Travel Stocks Fall as Covid Leads to Cancelations
barrons.com
barrons.com
That aside I am not sure I really disagree with your assertion that many are just calling in sick. It is awfully suspicious that many people got COVID at the same time, but they are exposed to people from all over the world on a daily basis so maybe they are the "canary in the coal mine".
My previous comment was more about the news twisting reality and writing scare tactics to get eyeballs.