That's really oversimplifying. EVERY tech has learning cost, and so a return on investment. K8s has been so hyped that many developers think it's a mandatory skill. It's not. I've seen talented app developers not getting through successfully deploying an app on K8s. For many, Heroku or Cloud Foundry is good enough.

Even in their case, it looks like they took a conscious decision and documented it. I'd wish more teams would do that. You are free to use K8, and I'm sure right now it's still not a controversial choice that will run against walls.

Isn't that a valid criticism?