I can't see the article to mention if he gets this package, remembering a few situations from my life I'd expect him not to get any package since he only worked for 2 days..
I don't know that, I don't work for Meta. Would be nice if you can share source to back your claim, if Meta is paying whole package to somebody who only worked for 2 days then that would be entirely different story for that guy.
You can skimp on the extras, but you cannot skimp on the basics. It’s their fault for hiring him after all. Not his fault for coming to the US and trusting them.