Here's a convincing Twitter thread arguing the email is fabricated.

=> https://twitter.com/alexstamos/status/1581357030576574465

Did you read the whole thread you posted?

  If The Wire is wrong, then Meta has all the evidence they need. While you could create a whole fake Workplace, the easier move is to just create a free trial instance, meaning those fake notes are sitting in Meta's databases along with the metadata of whomever created them.

  I think, at this point, it's on Meta to write-up a detailed response with whatever technical evidence they have. This will not go away just by ignoring it.

The Wire has claimed their source is an employee / contract worker and they have verified this. If Facebook really believes that this is all fake, it begs the questions why they haven't sued The Wire yet and identified this employee to get to the real truth?

I can hardly trust any of the journalism with a title like this. How about you just sue them in court for calling your story a lie?

Exactly - if Meta knows that the story is fake why hasn't Meta sued them yet?

Wrong or lying?

"Wrong" is legally safer.

This reminds me so much of Stephen Glass..This I'm a nutshell is very bad for the wire.

Not really - if Meta was so sure that The Wire has been fooled by fabricated evidence, the logical course would be to file a suit against The Wire to take down the "fake" news. Note that they don't even need to identify who "fabricated" the evidence - all they have to show is proof of how the evidence was fabricated, which they technically can:

   If The Wire is wrong, then Meta has all the evidence they need. While you could create a whole fake Workplace, the easier move is to just create a free trial instance, meaning those fake notes are sitting in Meta's databases along with the metadata of whomever created them.

Source: https://twitter.com/alexstamos/status/1581357055893327872