You do realize that it is more than just exposure. It is the range of flexibility coupled with action stopping speed. Somewhere between sports and weddings we need to have the flexibility to use a wide range of settings.
Granted the 6D will never be in our repertoire with its overall lack of features, but its the disregard of professional features in a camera that is a plastic "Pro" toy that makes the distaste for individual features such a big issue. Yes we could get by with a slow sync speed, and maybe deal with 1/4000 max shutter speed. But for us, whose entire income comes from photography, we need to nit pick the options our manufacturer offers us as it can influence our work. Now i know most people say it is the artist, not the brush, but these camera's are tools, and these tools can allow us to capture moments in time that can never be retrieved. So a tool that isn't up to the task at hand will never be a viable option for us. The Sync speed may never be a problem for most, nor the max shutter speed. So yes some of us may be "Armchair Spec Readers" but that is because our lively hood depends on the tools we use everyday.