If you want 1 facebook.com entity (that in turn controls instagram, whatsapp,etc) , then I get why a single AS change would take out globally. The anti-anti-pa

If you want 1 facebook.com entity (that in turn controls instagram, whatsapp,etc) , then I get why a single AS change would take out globally. The anti-anti-pattern would be to have country specific AS's, kind of like a franchised restaurant pattern, where each country's version of fb owns their own AS that loosely forms back into the facebook mothership org, but from infrastructure point of view points to their own set of AS netspace.