The parenthetical isn't where the retcon statement is, and is unrelated to it. Statement about the retcon for force ghosts is a statement. Parenthetical is an unrelated point of uncertainty and conjecture based on the 'I don't know'
How is 'I don't know' an indication of joking? It's a preface of lack of concrete knowledge, followed by a theory.
Re: Death of Force users
How is 'I don't know' an indication of joking? It's a preface of lack of concrete knowledge, followed by a theory.