I imagine a combination of many people don’t like silence, and automation.
If I’m listening to music and the artist decides that this next bit should be 2x as loud, im going to be annoyed as I set the volume to the level I, the listener, want. If I really want to sit and enjoy the music as intended that’s one thing, but its much more common I just want it playing in the background where I would rather it all be about the same loudness
In summary people don’t want the music to suddenly get really loud
Latest Answers