Problem
The concepts of Origin Server and Content Owner are difficult to understand. I'm not sure I do yet. Surely there is more we can do to make this obvious.
Part of the problem may be that the flags are not a good enough visual indicator of what content is from where, and how to navigate around, etc.
Need to use SFW more to see how this actually works.
Possible Solutions
It is likely that some type of metaphor should be integrated into the UI to improve comprehension of this. "Server" is not good enough ;)