I've just checked the Cloud Infrastructure section and couldn't see your point there. There are readings for fundamentals, then basic practices, then online courses in udacity and kube-bootcamp, then step-by-step guides to deepen the knowledge.

I think they have accomplished a good thing here: a curated list of sources to get into the cloud computing/infrastructure world.

I don't think they can talk about every step in the development lifecycle, it would be very very opinionated. It leaves the reader/developer no space for elasticity and freedom of choice to what to learn/practice. After acquiring the fundamentals, we should all choose our own path by discovering.