It's a personal thing, very much driven from a Theatre View perspective. To be honest, I don't use standard view, except as a means of querying and tidying up data that looks odd from within Theatre View. I use MC on a media PC in my lounge, no keyboard, no mouse, nothing except a screen and a remote, and the setup is designed to be used as simply as possible by my wife, my kids and myself. MC is a superb tool, but at times, it still looks and feels like it has come from a "techie" background. Being a lifelong techie myself, I have no problem with this, but, in Theatre View, I think the set-up should be as configurable as possible to give a real user friendly experience, and sometimes "techie" stuff gets in the way of this. It's the swan principle, sleek smooth and beautiful above the water, paddling furiously underneath. It's tough to give a sensible answer when you've just added a neat new query, and someone asks "what does All Expressions mean?"
I agree absolutely that in some queries, the All option is a valuable, sometimes essential feature. But at other times, it looks clunky and redundant. I don't think that MC is broken at all, I'm merely offering a suggestion that some users might find useful, some of the time. I have no interest whatsover in all of the work being done around TV in the product, but I understand its value. I keep raising the point because I'm getting no feedback as to whether it is being considered for the future or not. If Jim or someone says, nice idea but we're not going to do it, then fine, I'll drop it, but I think it would help make MC even more of an MCE killer than it already is.
I agree that it some cases the All option would look better at the bottem/end of a query.