General availability of Office 365 CDN

Looks like I removed my first post by mistake so here it is just for clarification:

Few questions regarding public CDN:

1. What does the "(configuration pending)" mean when you add new Origin? Do I need to further configure something to get it working?

2. If following the configuration steps, CDN is first enabled. Does this mean the default origins */MASTERPAGE  and */STYLE LIBRARY are now accessible via CDN? To make it possibly worse, if removing the origins only after enabling CDN, it says "WARNING: Content stored in the document library */STYLE LIBRARY is no longer served by Content Delivery Network (CDN). While the effect is immediate, cached content will still be available in the CDN and accessible by everyone anonymously for up to 30 days." Does this mean that everything is now in CDN for 30 days and there's nothing I can do?

Should there _not_ be any defaults, or should it be made very clear that one should remove the default origins _before_ enabling CDN, although it appears to always add these default values when enabling CDN even if you remove them before enabling.