Canon legal response

But CR didn't get to inspect (or much less teardown) the hardware; they only said that they could see the heatsink difference (and along with other unidentified changes) after being shown the camera by a Canon rep. There is a lot of room for different circuitry changes that are not visible or obvious to the unaided eye; I don't know how many "initial reports" I've read about Android devices that turn out to be wrong months later about important things like whether or not there is a Bluetooth chip or if the USB charging port is power-only or has data lines.

You just don't know until you can break it into little pieces with your own two hands. Doubly so for hardware that's still unreleased.
Nate