If I write a complex piece of software that does something even marginally interesting, I'm going to post it to HN with a similar title. After all, I'm sure I can execute it with one line of bash, so the title is appropriate, right?
Did you read the article? It's probably the most honest version of "one line of bash" given how prolific ffmpeg is, and the fact that, beyond one line of shell commands, I was able to listen to the streamed audio in my browser.
What more do you want? It works, quite literally, as advertised.