I was at KubeCon, and had a similar experience. Lots of engineers excites about all the technical possibilities, and less discussion of developer productivity.

It reminds me a little of in the 00's everyone thought their company should write its own CMS. I think we're in danger of every writing their own PaaS.

This is why things like Deis and Cloud Foundry exist. Most app developers should not have to understand the full depth and breadth of Kubernetes.