Product looks great. I totally feel the need for new open-source-but-not-for-AWS-to-steal-my-product licenses; however I'm not sure about that vague license for database would work for you.

                      A “Database Service” is a commercial offering that
                      allows third parties (other than your employees and
                      contractors) to access the functionality of the
                      Licensed Work by creating tables whose schemas are
                      controlled by such third parties.

So, if as a service provider, I control the schemas can the customers query the data using your SQL? Can I just collect data, put them to database and proxy their SQL to DB? i.e I'm the co-founder of Resmo (https://www.resmo.com) where we let customers run SQL on their cloud/saas assets configuration, can I use yours? The current wording seems to let me because we don't let any customer to define their schema, resources schemas are defined by us, for now.