I think I see what you want now. In order to get the value out, you'd have to use pattern matching or a type guard or something, inside of which you'd know there was a value.
That makes sense to me too. But compared to Maybe, a null-safe member accessing operator, along with null-lifted operators seems nearly as good from my point of view.
[1] Not for frivolous reasons. It's almost always nonsensical to ask this type of question with "null" values. For the sensical cases we have Maybe/Option.