My assumption is that this is an excuse to get rid of some employees they didn't want anyway.
the message is that it didnt matter how much you're paid, you still are under our thumbs, and we can use any excuse to fire you.
A company isn't paying you X amount of money because it "values you", they pay you that because of the market forces that force them to pay you that amount of money. They'd gladly pay you nothing and crack a whip on your back if they could get away with it.
"Valuing you" is something your family will do, but rarely a company, especially a publicly traded one.
>be careful what message you want to send.
The message was exactly the one they wanted to send: "Everyone is expendable".
It isn’t clear that they fired the employees to send a message. From the article, it doesn’t look like Meta told other employees, “we fired people who abused the free meal service,” so I don’t know how others would get the message. Instead it was posted on Blind and picked up by news which seems like a poor way to send a message from a PR perspective.
did you not read the article?
the message was, quite reasonably, "don't take the fucking piss, if we give you food vouchers to buy your dinner, then use it for buying yourself dinner".