Sort:  

This isn't a graph database at all, unless I am somehow mistaken.

No, it however has to implement one to allow the diff-updates that the platform allows, which essentially is a graph database (like CVS or Git). It just gives you the ability to search using SQL queries which are very concise and neat and easy to write, and with that pull all kinds of higher level data out of it. I think that was the purpose of building it - to allow more people to tinker with analytics.