@ ironman - there's just too many exceptions, maybes, depending on this and that etc.. for your logic to be successful. It dosent add up. Exlusive is and have always been defined as Single or Only. And not divided or shared with others; ex. "they have exclusive use of the machine"; "sole rights of publication"
There's really no need to try and bend the definition just so it'll work with what you're trying to achieve.