Who do you quote?

This quote mostly applies to people who don't want to spend the time learning existing tooling, making improvements and instead create a slightly different wheel but with different problems. It also applies to people trying to apply "google" solutions to a non-google company.

Kubernetes and all tooling in the cloud native computing foundation(CNCF) were created to have people adopt the cloud and build communities that then created jobs roles that facilitated hiring people to maintain cloud presences that then fund cloud providers.

This is the same playbook that Microsoft did at Universities. They would give the entire suite of tools in the MSDN library away then then in roughly (4) years collect when another seat needs to be purchased for a new hire that has only used Microsoft tools for the last (4) years.