Just a picky note on an error/typo in the copy - in the article's fourth paragraph you say:
"...inherits the 5D Mark IIIâ€™s video mode with 90MB/s ALL-I codec.."
Canon specifies that the 70D produces full 1920 x 1080 16:9 HD at 24fps All-I H264 video at a rate of 685 MB per min. This is about 1.42 MBs (rounded). The 5D3 is also specified by Canon to produce the same H264 spec video at the same number of MB per min. and hence the same rate of about 1.42 MBs.
So yes, both the 5D3 and the 70D have an HD All-I H264 video mode, and provide the same data rate in that mode, but it is not the same as the 90MBs Magic Lantern Canon 5D3 raw data rate.
Like I said, clearly just a mistake in the copy, as you literally 'wrote the book' on Magic Lantern 5D3 raw video...:-)!
I just think it may be worth correcting as I don't expect (but can't say without testing) that the 70D will provide a data rate to SD that is as high as 90MBs in any mode, though I am expecting it will be faster than older SD card cameras.