Really? I don't think he has been constantly chasing the hot thingy in the past 10 years, stuff like Ruby/Rails, Coffeescript, Clojure, Kotlin, Node, Typescript, F#, Go, Rust, Nim, Elixir, Meteor ...
His livelihood is about presenting at conferences and writing books. It's basically his job to dig up new technologies and fake excitement about them. Without that, he's out of a job.