Actually, the revolution can be traced back even further than the EOS cameras. It was the Canon T90 that was the big game changer in SLR camera design. And as for "all controls on the body" with the exception of focus, you can look all the way back to a 1978 design -- the Canon A-1 -- that could make this claim. Namely, movement of aperture control to the body, even when the camera is in Aperture Priority AE.
Yes I agree, the T90 is I think where ergonomics took a completely new turn in form and function.
I never got to own a Canon A-1 despite taking a very keen interest in it in the very early 1980s.



