This article is pretty ignorant.

I don't think most developers have the capability to be sysadmins or QA. Vice versa, too, quite often. Joe developer ain't that special.

Devops is about taking moving the infrastructure into its own configuration-managed artifact, taking lessons from programming and computer science, and coming out with its own engineering rigor.

If you want your devs to operate builds/infrastructure/etc/etc, that's fine, but devops that ain't. That's called "many hats".