Vatican 2 and other post-Vatican 2 documents have defined what exactly that means - it is not what you are implying. Would you like me to repost the explanation again?
Regards
If you do please provide an explanation of the 12th Lateran Council, the Council of Trent and the Vatican 1 statements on those outside the Church and whether or not these have been rescinded. After all they came Ex Cathedra.