The move from Python 2 to 3 would likely have also involved changing the architecture so they could migrate components incrementally. Since they were going to d

The move from Python 2 to 3 would likely have also involved changing the architecture so they could migrate components incrementally. Since they were going to do that regardless, and if they already wanted to change the interfaces from HTTP to GraphQL, this is a natural time to do it. Though, this migration has nothing to do with React--they were already and will continue to be using it.