It's a theorem. It's theoretical. This is like complaining about the 20 watermelon example being unrealistic: that's not what it is about.

Optimization died when hw limitations are less severe

Latest also means automatic major upgrades without doing the steps necessary for said upgrade, or breaking functionality/changes.

See: https://medium.com/@mccode/the-misunderstood-docker-tag-latest-af3babfd6375

https://vsupalov.com/docker-latest-tag/

https://cloudmaniac.net/docker-container-never-use-latest-cicd-pipeline/

Having everything on latest seems a very bad idea.