I indeed am tired of hearing about video in my slr. If the 7D mk II had no video, it would not be even slightly bothered. Do I use my 7D video? Occassionaly, but if the lack of video kept price down, I would be happy. Or, if they just left the video the same, and focused on improving the still picture side of things, that would indeed make me much happier.
I'm a photographer, not a videographer!
This is a fairly common argument. The most common valid evidence for excluding video that I've seen is that camera makers are dedicating buttons (at most one or two) to video (somebody recently called it a "Youtube button") instead of to features they use. Now, some cameras won't let you remap buttons using custom functions, and I don't know if any really will let you remap buttons that are dedicated to video currently. Out of the whole camera's interface, it would be a valid complaint (in the case of the "Youtube button" guy's camera, I think it was a dedicated ISO button in a specific advantageous location that was claimed to be lost, or something like that - don't recall which camera however). It's definitely a valid concern.
However, and just to repeat it again, Canon gets a heck of a lot of value out of having video, and so do many casual users. Nobody has ever demonstrated that it adds substantial cost to cameras - can you point to a price spike in cameras (not better explained by adjustments for inflation etc.)? I don't believe so. There really isn't any reason to believe that Canon needs to make the camera more expensive, despite having poured interesting new developments and research into making their movie modes more viable - Canon gets a significant marketing boost (i.e. the camera is more competitive; it would be a mistake to think that there would be no dent in Canon's market share if they had ignored video, and that's before considering they would have missed out on possibilities like Cinema EOS to enter or create new markets) and they benefit from users who use their DSLRs as video production cameras, although recently they indeed have been apparently working to please purists - video users first, with the new and ambitious 1D X spec, and also with the Cinema EOS line. I wouldn't look for them to delete the Live View button any time soon, and the dedication of the shutter button to taking still pictures in video modes on EOS DSLRs should likely persist, so a video on/off button may continue to persist on all their DSLRs. In the end, though, I'm not sure it's a big deal.