To answer the original question. Yes, they clearly are protecting a pro range of cameras by neglecting video features on what they class as photo still cameras that do a bit of video. Saying that not to add a 4K option to the C100 MKII, even via HDMI only, was an odd decision.
Sony and Panasonic clearly see the video side of the cameras being as if not even more important than the stills side. They've seen Canon are neglecting this area of the market and are going for it.
I was ready to upgrade from my 7D and have been looking around for weeks at the options and have plumped for the GH4 this weekend, for both price and the quality of the image plus the fact it has video features I really want to use and I can still, via Speedbooster, use my Canon EF mount lenses on it. So it's not a total system switch out and if Canon do release something in the future or I invest in a C series camera at some stage I'm not having to buy lenses again.