I'm for a 6D Mirrorless with an EVF, but the concept that you can't stabilize a LCD based camera, and have to hold it out at arms length is completely false.
Again, for emphasis:
In fairness, no one's saying LiveView shooting doesn't work.
I'm saying it's less fun, less comfortable, and (certainly in my hands) less stable. Can you take sharp shots with it? Absolutely, but I personally might have to goose my shutter speed a bit in that case.
But consider: why does every single FF rig these days (leaving rangefinders out) have an integral TTL OVF or liveview from the sensor (EVF) viewfinder? It's because people prefer them
, regardless of how slick liveview becomes.
I believe that's because it's a more satisfying / immersive shooting experience that is more stable and more comfortable. But I could certainly be wrong. Others might find (totally speculating here) that focus peaking or DOF preview is more accurate / better appreciated with your eyes up close.
But I simply can't see Canon's first FF mirrorless offering going the first EOS M route and forcing LiveView shooting. They might make the EVF a separate component you bolt on for size reasons (I really hope not), but I have to believe that an EVF of some sort will be available on day one.