Not confusing at all! Interesting to think through this post and follow the competing agendas, reader’s, author’s, agent’s and publisher’s:
If I sell Title X for North American rights only, then that means the US publisher is only allowed to sell its English version in the US, Canada, US territories (aka Philippines etc), and non-exclusive in select countries in the rest of the world (clearly listed in the contract). Print or ebook. The reason for this is that we want the ability to sell English to UK or ANZ (Australia) separately and UK/ANZ insists on certain “exclusive territories” for its print and electronic edition.
Are you starting to see the problem? If UK/ANZ hasn’t been sold, then no eBook version in English is available in let’s say Denmark because Europe is considered exclusive to UK in terms of selling the English edition.