I've excited for competition but unfortunately the post seems a bit confused in its message.
On one hand it talks about the original Docker manifesto and later says it was removed, with the removal being a "bad" thing. However, it refers to Docker not being simple as there are plans to add more and more features to it.
Including, "wide range of functions: building images, running images, uploading, downloading, and eventually even overlay networking, all compiled into one monolithic binary running primarily as root on your server". However, in the original manifesto (that was removed), Docker announced/claimed those features would/should exist: https://github.com/docker/docker/commit/0db56e6c519b19ec16c6....
Competition is good but this was a bit weak in its first appearance.