> That reason is either incompetence or market segmentation.
Yes
Or simply because most people don't record longer videos. Or because that heat has to go somewhere and a bigger heatsink might heat some areas (or the user).
Or the current heatsink is an existing part and it was "good enough"
The average person isn't recording 8K RAW videos and doesn't have a computer capable of handling that either. And the EOS R5 at 3900$ is unarguably a professional camera.
