As I often do with new-ish things these days, I've been quietly weighing what degree of investment I want to put into GraphQL for a year or so.

John's vote of confidence means a lot to me. The software industry has lots of abstractions that are different ways of arranging the chairs on the deck, shuffling the work around while providing marginal productivity magnifiers.

jQuery's been somewhat superseded because it isn't an application-organizing framework, but it's still one of the best conceived and fitted abstractions for the problems it was meant to solve I've encountered in the entire time I've worked in software. If the person who conceived it thinks GraphQL yields productivity benefits, then I want to check it out.