By expecting Docker users to know more than they do, the author thinks they're dumber than they are. Docker users are mostly folks who specialize in other area

By expecting Docker users to know more than they do, the author thinks they're dumber than they are. Docker users are mostly folks who specialize in other areas of programming, to whom Docker popularized affecting "fat binaries" out of PHP/Ruby/Python/node apps via chroot. Chroot was already well known to ops folks, but was arcane to most webapp devs. We're not ops experts who have been confounded by marketing, we're ops amateurs for whom Docker cracked the nut of chroot legibility. The author hates on Docker in comparison to other fat binary techniques; he ignores that pro-Docker advocates are comparing it to not using fat binaries at all.