It has, if the thing you are showing fits the media. If you show the different flags of ls without explaination you would be better of just showing me the printout of ls -h

If you are showing off some beautiful TLI, an interactive prompt or ascii animations, this is the perfect tool.

As someone who works in film: film also doesn't lend itself to everything. Certain internal observations that work great in literature would be unwatchable on film etc.

Or to take it to the extreme: you don't expect the overview of an database to be experimental performance video art.