There are articles from GitHub, Shopify, Artsy, Walmart, Coursera, New York Times, and more! And these are just companies that have bothered to write an entire article about their experience.
Of course the libraries are important too, but even if Facebook specifically strangled GraphQL to death, the idea of simple declarative HTTP API is too valuable to let it die on the vine.
In parallel, even if Facebook decided to strangle their React user base with patent trolling, and everyone decided to ditch React, the idea of a declarative DOM library or unidirectional flow is too good to let it die with React. And so we see it in Vue, Angular, and Preact or Inferno.
Hype may be related to many factors, one of which is mere library or ecosystem polish, often propelled by a big company with labor to spare, but I think the benefits behind a declarative HTTP API are real.