Avoiding sh overcomplicates this. Just give them a one liner: mv ~/.zshrc ~/._zshrc and vice versa. Pasting a cmd is not rocket science.
There's just a lot of people that did not grow up using computers the same way as many here. Whether it's they grew up on mobile devices or have only ever used a GUI.
I don't think it's reasonable to expect a developer to not understand command lines but plenty do not. There's whole populations of very junior programmers that have zero experience on the command line. Hell I know people with decades of Unix experience that don't know basic CLI stuff or reach for the GUI to install packages or manage things.
macOS (and the entire Unix universe) is a shitty environment for people who rarely / don't need terminal but whose job could be improved by a lot if a scripting language is used.
Microsoft used to champion intermediate users who need more power than mindlessly clicking web pages. They are now turning their products yet another copy of the other systems where you are presented with a cliff as the learning curve.
I disagree completely that a simple programming environment should require terminal access. Terminals are unforgiving for mistakes that a beginner makes. Most of the terminal capabilities should be done in GUIs. One should be able to access all files, edit them, change the OS environment variables and create programming projects in GUIs. We achieved that in 90s already. Why should we go back?
What does "Unix experience" even mean if you can't sling the basics in the shell?