I love the idea of using the A7s (or any camera for that matter) for EAA. I just don't think that the ability to take shorter exposures and better looking images on their own makes for an EAA appropriate setup (although it certainly helps). Don't get me wrong, I think the A7 can be part of a great EAA setup (those great IIE images and videos are good examples). I just think most of the discussion going on about the A7s so far hasn't been EAA oriented, just more about getting better images with shorter exposures. I thought EAA is primarily about viewing not imaging. IMHO the imaging part should be about accurately capturing what you are viewing.
Let's see live viewing, constantly updating software that constantly displays an image that I can take a good close look at or display to others viewing with me. No, it doesn't have to be video, just something that will keep displaying the current image from the camera without having to fiddle with the software.
And yes I know that there's a bunch of video camera software that is going in the opposite direction by adding more and more complexity and behind the scenes image manipulation ... but at least they still keep displaying the most up to date image in a fashion that I can study without having to do anything to refresh it.