This article is implying that a group of the best engineers of the world (Facebook and Netflix engineers came up with similar solutions with Relay and Falcor),

This article is implying that a group of the best engineers of the world (Facebook and Netflix engineers came up with similar solutions with Relay and Falcor), are just dumb and don't know how the web works. There are motivations behind those solutions, and are documented across videos, papers and documentation. It seems to me, that the author is ignoring the previous experience of such teams.