The text elaborates on enhancing the use of GraphQL with Golang and Couchbase by efficiently managing data relationships. Initially, a basic GraphQL schema was created to interact with account and blog data, but it required passing variables in queries, which was cumbersome. The author proposes improving this by integrating data relationships directly into the GraphQL model using a `Resolve` function, allowing for dynamic data retrieval without excessive queries. Alternatively, they suggest leveraging Couchbase's N1QL to execute more complex queries at the database level, thus improving efficiency by reducing the number of database requests. The tutorial emphasizes how GraphQL's flexibility in modeling relationships can optimize data interactions in a Golang application, highlighting the benefits of allowing users to request specific data without multiple API endpoints.