Based on my experiences, the 1DC has no active support from Canon and the user base must be so small that Canon feels they can ignore the camera without a big hit to their marketing and sales. I found an error in their firmware last year and called tech support to discuss it. The first person I talked to had almost no knowledge of the camera. Also, the 1DC they had onsite did not have updated firmware on it so they couldn't check the issue anyway. With some help from Texas Media Systems (thanks guys!) I was able to talk to a much higher level Canon rep who never admitted a problem, but did begrudgingly pass my complaint onto Japan who ultimately fixed the firmware error. Based on that experience, I am convinced that Canon USA has almost no experience or knowledge about the 1DC. The camera is basically unsupported in America. All decisions and knowledge on the camera exists with the cinema team in Japan and I would guess that they have just decided to cut their losses and push the 1DC under the rug so to speak.
Hmm.... thanks for the insightful post. This is not very encouraging news for those of us who had decided to invest heavily in this system, but I must admit that the information you provide is totally in line with our own observations. It seems that the 1DC has issues Canon knows about but would not admit. It looks like they designed the 1DX, then they went... "well, let's make this record 4K and call it a cinema camera" and overlocked, put a bigger heat sink, etc, but it was just not designed from the start to do this. And then the problems came. The ridiculous price tag was another very bad decision, so the camera could not start properly with a bigger client base. All in all this is bad news for us who try to use it and find that it is a good concept.