Canon made two missteps with the 70D IMO, both likely the responsibility of the marketing dept limiting features for differentiated - but may end up backfiring.
Problem #1 - NO HEADPHONE JACK - Launch a revolutionary liveview autofocusing system, put this huge focus on video, then fail to include a headphone monitoring jack. So, you have all this advanced video focusing going on but no way to accurately monitor audio. Who is this supposed to appeal to? Mainstream consumers don't want to spend over $1000 for DSLR video (they will buy a t4i/t5i) - and a professional looking for video usage maybe for a backup or travel camera would likely pass due to the lack of headphone jack. Thus the signature selling point of the 70D, liveview autofocus, is totally gimped by the lack of headphone jack!
Problem #2 - 7D2 - The elephant in the room, everyone knows the 7D is up for replacement, as it is easily cheaper than 70D in many stores. So, again, who is going to spend over $1000 on a 70D when the 7D2 which could be much better is just around the corner? Canon should have released the 7D2 first or released these two in somewhat close proximity, otherwise you will have people holding out for potentially something better.
Also, on a less important note, the wifi is not fully baked yet, doesn't even support the high end Lumia 1020 41mp smartphone.