Because I believe people make mistakes in speech all the time. And as we have seen in the media, they are crucified for it. Could it potentially be a hint for things to come, or it was a slip and things changed and he became more conservative and decided to remove it because it was wrong.
Because of who is advising him....I feel so invisible keep repeating this, lololol Someone told him "Ok we are finish, however, .....but we are still finish". And that is why this 'Someone" did not advise him on prematurely posting that initial facebook post saying it was closed.