This is cool, but why? What’s the business use case or problem they’re trying to solve? I would have liked to hear about that. Without that critical piece, it sounds like Netflix engineers spent a lot of time and effort just to migrate to a new framework.
It also bears mentioning that Netflix is, or pretty much should be, complete. They don’t need to make any changes to the service; if so, it’s very few. I’m sure they need talented engineers to scale up their operations, and great SREs, but what are they still writing code for?
The business case seems to be to finally kill Falcor [1] which had a lot of similarities to GraphQL but a much smaller maintenance and developer community than GraphQL and I would assume looked a lot like tech debt to Netflix at this point.