> a CLI app does exactly what you ask for, and has a manual documenting exactly what command do what

*a small percent of apps behave like this

> it may do what you want but there is a change it won't and you have to fight it to get the desired result

The vast majority of all software made in the last ten years falls into this category. This includes the goddamn operating system itself.

I don't think you're making the argument you think you're making.