So this is actually an argument for using this new tool (cloudnative buildpacks) that generates a dockerfile(?). And not some sort of clever tirade on a devops industry that generates a constant flow of overly complex tools that seem to solve the same problems again and again?
It is not a tirade against overly complex tools, no. It is an argument against individual developers doing the same work over and over again for different apps.
Cloudnative buildpacks are not especially new. Paketo buildpacks came out in 2020. The previous buildpack system predates Docker.