It's interesting that even podcasts, which you'd think would be more focused on audio considerations, don't do this, either. I'm mostly thinking of Dan Carlin's podcasts, where sometimes he goes a weee bit quiet. (And Shadows of Utopia, which I have to jack up the volume for the entirety of)
(insert caveats about: artistic effect; I have zero audio engineering experience; podcasters definitely do some things in this vein e.g. https://www.reddit.com/r/podcasting/comments/10oqvpm/podcast...)