They won't. Despite the fact the same people here who believed the leaked Twitter all hands video from the same source and could not refute or deny the authenticity of the it, they now scream 'fake' again especially with an internal email being sent by Twitter themselves confirming the whole situation of leaks by PV, telling them to be vigilant.

Unless Twitter is going to come out and refute that specific email, then it has been admitted and is true.

Every-time they hesitate after the release of more leaks, then the situation becomes more problematic for them.