We originally built Saturn to use internally at Meteor as a way to hit the ground running when building GraphQL apps and not spend a big chunk of time setting up the right tooling. For example, Apollo Optics (http://www.apollostack.com/optics) is built on top of the Saturn framework.
Since then, the React team has released some nice tools (facebook.github.io/react/blog/2016/07/22/create-a…) that make it easy to get started building React apps so we don't want to replicate that effort within Saturn. So, although we don't have immediate plans to promote Saturn as the "standard" way to build Apollo apps, we would be glad to work with people who would like to use Saturn in production.