Do you have to make things so obvious?
Listening to your favorite artist online is fun as it builds up anticipation for future visuals. Funnily, most tragic misses happen in the YouTube comment section, and this is no exception. A YouTube audio plays and the musician is known to be exceptional; as a form of commendation, a person jokingly praises the artist’s skills to the dismay of others.
Since it’s a still picture of an artist, the response mockingly reminds the other person that the music video is audio. Some commenters are so hell-bent on making a statement and will resort to blindly replying without looking at the context. Again, don’t be this kind of person.