Ah yes because stories wasn’t a massive success.
Stories was a massive success because they pivoted their massively successful app Instagram around it.
They’re never going to do that with a Twitter clone, the stakes aren’t high enough. It remains to be seen if they can actually launch a copy of another app without subsuming an existing one to do so.
Facebook Workplace is an example of a completely new product.
And it has actually been a quiet but lucrative success for the company.
https://techcrunch.com/2012/12/21/facebook-poke-app/