When I was looking into it the "GraphQL" name was kinda misleading. It's not particularly graph-oriented, and not even especially good at representing graphs in general. Tree-oriented, a bit, I guess, which is a kind of graph. Maybe that's what they're going for.
No idea if this is true, but I think that it's because GraphQL is kind of the successor to FQL, which was used to query Facebook's "social graph," which was a big marketing thing back in those days.
