But, frankly, it's not. Both of them are deliberately, even if they don't know it, blocking lines of communication between character and watcher. Text is one of our most enduring artistic forms, and from the point of author to user communicaton, it's one of the most primitive. You extract all the information, all the subtle nuances of the points I wish to make, from a simple string of letters. No inflection, no rise and fall of my voice, nothing.
Punctuation is text's sole inflection, and without it much textual communication breaks down.
A radio play, by contrast, has many more vectors for communicating its information. Part of the UGO network .