> But most commandline languages are inconsistent, have inconsistent abbreviations, have inconsistent command parameter naming/defaults, contain acronyms of incomprehensible words, have plain weird names, contain inconsistent or outright incorrect documentation...

And how is this different for GUIs? Location / icons / description / ... depends entirely on the application. Some will have hotkey handles, some won't. Same app on a different system will look differently. (Possibly with different layout) Creating a discoverable GUI takes as much will and attention as a good set of CLI options.