So many points, but they all miss the point.

He links to about 20 different tools/services with the attitude of "docker is just doing all this stuff that already existed!" as if that's a bad thing.

But it's not. It's the whole freaking point.

Docker took a bunch of existing tools and consolidated them into a single general tool, which acts as a foundation to build on.

Hell, they picked a shipping container as a logo for a fucking reason. We also shipped all the same goods before a shipping container was invented, but it was slow, inefficient, and required custom solutions for each port/ship/good. Shipping containers solved that by providing a single foundation upon which you can standardize and extend.

Docker does the same thing.

This is a bad article.