I often find that when I use Command-Tab, the application that it ends up selecting is not the one I want. This is either due to my own mistake, of pressing the Tab key too many times, or believing that the initial Command-Tab press will bring me to Application A, when instead it brings me to Application B.
Both could be alleviated if I just took my time, but I often find myself in a rush, and can't be bothered to look at the entire list and selecting with the arrow keys.
I just feel that if the Command-Tab list was shortened, in that it only listed specific apps rather than everything, I would be able to use it better. That terminal command is helpful because now when I do select the wrong application, it won't switch Spaces (since I have application specific Spaces)
Essentially, what I'm looking for is Expose but under the list-like appearance of Command-Tab