It misses the biggest one: using it. I ranted about the cloud a decade ago http://drupal4hu.com/node/305 and there's nothing new under the Sun. Still most companies doing cloud and Kubernetes doesn't need it... practice YAGNI ferociously.
Nothing new with that one. I still think git was the wrong choice for DVCS and yet, I have been using it since for a decade or more now. I am still still feeling I have an uneasy truce with it but not a friendship. I still think github is a shitty choice for hosted git -- at least most large open source projects have went with gitlab so I am not utterly alone with that. I am using now Kubernetes because my primary client is using it. Doesn't mean I am happy with it or that I think it's necessary by any means. It's fine. I am getting old but I still can learn. Doesn't mean I can't be grumpy about it.