I disagree. While to be a power user you might have to learn all the syntax of the OS, I have been using NixOS for a couple of years, and have my configuration set up by borrowing other configs from the Web.

Additionally I'm a heavy Emacs user, and couldn't type a single line of elisp. I get that I'd be better in Emacs if I knew elsip, but that doesn't stop me configuring my text editor by borrowing code from others.