Yeah, if it isn't official, I don't think FF would want anyone doing it. Of course, maybe FF should actually provide customers with an alternative to access the material instead of completely making it unavailable. But I don't really think they thought that one through either.

Maybe HoB is meant to be a 2.5 edition and it's just easier for FFG to forget TSR campaign completely. Or it could be coming back in the future as a boxed (or book) expansion.