GraphQL turns a social problem (getting your frontend and backend folks to coordinate with each other) into a technical problem that someone else already solved

GraphQL turns a social problem (getting your frontend and backend folks to coordinate with each other) into a technical problem that someone else already solved 75% of for you. That's a big win. GraphQL doesn't do anything that you can't do with sufficient coordination, but coordination is actually one of the hardest parts of getting things done at a large company.