Also because they are just outright missing the point of the post they were replying to. Yes, deploying thing on kubernetes is pretty simple. Deploying kubernetes itself is definitely not very simple.
People are confused, you should most likely not opperate k8s yourself if you don't know or does not have a team for it, nowdays managed k8s are easy to use and operate, with 3 clicks you get a cluster up and running with sane defaults.
Not to sound trite but I feel like your continued pressing of this issue evokes the entire "Do you even lift, bro?" meme. There are PaaS that can get you up in 3 clicks, but now you are in bed with k8s which is critical for the infrastructure. I think it's quite necessary to definitely understand the inside-and-out of such a vital component for my infra.