I still don't understand where the money exchanges hands, here. To my understanding, GraphQL is just a query specification. If the money is in hosting, and it becomes moderately successful, they risk becoming Amazon'd.
Amazon already has a product based off Apollo. But MDG makes money of apollo by selling graphql monitoring and analytic tools for your Apollo apps.
Discover Meteor was promoted by MDG because they thought it was a good resource, but it was never part of MDG itself, it was wholly independent even if one of the authors did go on to work for MDG afterwards.