I guess you haven’t seen any of the other movies? Force ghosts, voices, visions, telepathic long distance conversations have been happening throughout. Suddenly it happens in a film that you don’t happen to like and now you choose to call bullshit. I’m sorry that you didn’t like the movie mate, but for gods sake dry your eyes princess and give it a rest.
The great thing about this new ‘Force projection’ thing is that it makes Obi’s ‘ghost sitting casually on log’ routine in ROTJ seem a lot less ridiculous now…