Yup. Tech faabionabilism is akin to Big4/MBB FUD flavor of the quarter... populism/marketing doesn't a necessity make. Docker, Kubernetes, gulp, Hadoop, mosh, Nix, SmartOS, serverless, cloud, virtualization, [insert tech fashion hype > utility here].
Speaking of Hadoop: my vehicle is parked outside one of the HQ's of another top 10 Hadoop startup. It's one of the most expensive, nearly empty buildings in the highest rent areas of the Valley. (Money flushing sound here.)
Fun fact: one of the enterprise Hadoop CTOs is a broney.