Just another way of looking at the mute button. Don't want that channel in Aux 3, just turn it down to nothing in Aux 3. If you're looking at the panel with the trim adjustment, you have all the Aux sends right there. Just try to think of the channel mute the same way you would think of a computer's application folder. Just one more way to do exactly the same thing. (Use the start button to start an app or reach into the Application folder and start it that way...... ) On most computers there are about 4 totally different ways to do the same thing. This really follows that example.
Now if you think we need a different approach to Muting, Put it in the wants for the next version of Master Fader. I'm still trying to figure out why one would use it if they could. Others might want it too.