You don't work for Canon, you are voicing your own opinion and stating it as fact.You are doing the exact same thing.
Your opinion does not disprove my opinion. Clear?Well, it does .
Downmarket products are typically not meant to "protect" sales upmarket products ... unless they are obviously designed to do so.
You see, there's absolutely no need for the right-hand-only button placement on the back of the 6D.
Before articulating LCDs, even the Rebels had buttons on the left side.
So, having buttons only on the right side is not some novel ergonomics idea.
Canon did it so that the 6D has a consumer feel to it and is different from the pro-oriented 5DIII.
This is so-o-o obvious that mine opinion really disproves yours in this case - based on the obviousness criteria.
And btw, you should be worried that such an obvious thing escapes you.