I disagree that tooling is required to work with them in the GraphQL case - you still end up getting and sending JSON in the vast majority of cases. With gRPC

I disagree that tooling is required to work with them in the GraphQL case - you still end up getting and sending JSON in the vast majority of cases. With gRPC you're absolutely correct. Then again, I wasn't trying to make an argument for or against any of these technologies per se - just pointing out that this is a major part of the value provided that wasn't really called out in the article.