I'm one of those people that turn off music in games after I've heard it. There is a reason most movies and TV shows have sound in space, it adds to the entertainment value. Just a sound effect, explosion hearing lover's opinion of course.
I hear you. I will make an update some time after the jam is over, and there's a high chance of sound effects being in place. Doesn't hurt to give players more choices. Also I'll get some audio bus handling exercise while doing that.