"First there was HipHop, the PHP interpreter which improved performance, now usually referred to by the less embarrassing name HHVM. Building on HHVM, they've just introduced Hack, which 'reconciles the fast development cycle of PHP with the discipline provided by static typing, while adding many features commonly found in other modern programming languages.'
Over the past year, Facebook has converted nearly all of its PHP code base to Hack, which makes up the core of its website."
This is taking a really crappy language and making it slightly less crappy. And then giving it a name with a negative public perception.
Imagine as an independent contractor going to a client and saying "I plan on doing your project in a language called Hack. It's by Facebook."
You're right. Leave out the part about Facebook.
... and HipHop.