1. It is easy to do, and upset your mix, meaning having to move the fader back to exactly where it was you'd carefully set it to.
2. This is not really useful anyway, as who mixes like that? If you want to change the volume of a channel you're not going to click at a point on the fader area to do so, you'll click on the fader itself, and move it to precisely where you want it to go to.
3. The fader doesn't even move to the place you clicked, it just moves a bit, so it's not helpful in anyway for it to behave like this.
Can we please just have clicking the fader area selects the mixer insert itself, not adjust the volume. Maybe once the insert is focused, behaviour can switch to this useless function
(again, who on earth would mix by clicking the area instead of the fader and moving it to your precise point, rather than it just moving a small bit, unless you hold left click down,,, which gives you a very inaccurate way of moving a slider)