This seems like plain common sense and required courtesy but I've been on the wrong side of this from both approaches enough times from both sides of the table - people somehow have a block in sharing the bad news (also because in unhealthy places the messenger is shot - just makes me realize that I'm in a good place).
(In any case the blog actually talks more of sharing the context you are in and not just about sharing bad news early - sharing context is definitely safer and a better approach)