Don't you get it? That's the best counter for mines right now! That they're incredibly annoying to build! And not even to micro, they're annoying to your eardrums!
Right now, the only way to prevent you from building 500 mines across a grav well is that you're going to have to hear the completion noise 500 times, all while you're trying to concentrate on other things!
But in all seriousness, that has to be pretty annoying. Of course, there is the already built-in solution of the vocal volume control...
