> 10,000 pilots left the airline industry during the pandemic.

"airline industry" being the differentiator between what you listed and the original article's claim.

Also, the number you're referencing is United Airline's, so not even Alaskan.

> United Airlines mandated vaccines for staff in August and said more than 97% of its staff received at least one shot after the deadline this week.

All those discrepancies aside, you probably have a point. I don't personally believe it's _this_ reason alone, but I think it's at least a part of the issue.