Command line is not the only HCI that can use text. Also, no one (except immense mental inertia) stops developers from producing serializable graphical interfaces.
I think the macro language of WordPerfect 5.1 was one of the most awesome serializable interfaces ever.
And they scrapped it in WP6 for some shitty object oriented version that lacked all the "serializable workflow" of the previous one.
exact: in many GUI tools, you can have non-default settings that you changed via menus. Where are they stored? Which ones are currently active? Does it matter that you selected four objects first, then a transform tool, then another object?
programmable: > find /var/spool/program/data -name foop* -mtime +3d -print
vs "open the file manager, go to /var/spool/program/data, sort by name, secondary-sort by last modification time, find the ones that are more than 3 days old, make sure you don't slip"
repeatable: OK, do that again but in a different directory.
transmissible: here's the one-liner that does that.
Now, your specific requests are about audio and video toolchains, where I will admit that reasoning about flows is easier with spatial cues -- but I'd really like the output of that GUI to be an editable text file.