This has to be one of the dumbest statements I've ever read about docker.

I admit some people definitely abuse the usage of Docker, because of their bad copy/paste practices from basic step-by-step walk-throughs. But the thing that makes docker great is it's easy of use to create reproducible deployments. And if you don't want to use a projects docker images; a projects Dockerfile is still a great reference on how to get a project deployed on a linux platform.