Indeed, if you forget the password your kind of “effed”. But I would think that if you are going to use a password in the first place, you’d be responsible enough to either use one your remember or use a password manager.
In any event, I do think it would be a useful feature as I sometimes take notes in meetings that include my own subjective assessment of my colleague’s performance. And while I strive to be fair and accurate, nonetheless I would be very unhappy (as might they) if they were to read those comments.