Pretty harsh review. :P But in all honesty, you are indeed right.
They have all the tech and know-how to make it happen, but they just don't.
Canon especially has been dragging the 18MP sensor for far too long. They had a head start with their 5DmkII and 550D (and all the models followed after), but started to lose their touch and had to see mirrorless camera's overtaking left and right because they we're not tinkering under the hood and weren't hitting the peddle to the metal. It's like entering the Formula 1 with one car and keeping it like that throughout the season, whilst others install performance upgrades and what not. Given that the new 70D is nice, it performs only marginally better than the in meanwhile ancient 18MP sensor (imho). The real power lies with the 5D. It was pretty ground breaking with the mkII and the mkIII opened a lot of new possibilities. But it's not really thanks to Canon, now is it? Great deal of the credit belongs to the amazing work from the guys over at Magic Lantern who can make it to something you can really get excited about. But why dumb down your own camera's when there's an audience waiting for the possibilities? Like you said, are you really just gonna ignore them and push 'em away towards the micro four thirds camera's?! If you'd just, like Panasonic, take notice of what people are saying and give them something to work with and get excited about, you can win too, but I guess they want to be at the losing end of things and stay cornered in the photo-specific corner. Because 'oooooeehh', you don't wan't to be known for your excellent video when making photocamera's.
Atleast Nikon is innovating. In the consumerline budgetfriendly camera's category, their sensors outshine Canon's by quite a bit. But they fail to recognize the wishes of cinematographers and video enthusiasts. And that would even be okay if there was a Magic Lantern realizing those wishes and completely changing how you can use the camera, but unfortunately there's no such thing, nor will there probably ever be. Which actually kinda pains me, because here you have Canon that more or less lacks potential, but they have ML. And then there's Nikon, actually quite capable in theory, but as they say: you can't polish a turd, and nobody is seemingly willing to (be able) to get their hands dirty.
The way things are going the only thing looking forward in terms of dSLR for video would be the 5DmkIV. And even then if they would just acknowledge the need for videofeatures on it and not dumbing things down so you can release a new camera after a little while with minor upgrades, you already could've provided months before. Same of course goes for the APS-C line of camera's from Canon and Nikon. It's like the story of Cinderella; a lot of potential wasted because it's being treated like dirt. But when given a proper chance and attention it could florish like a flower and win over hearts!
But anyways. It's gonna be too little, too late anyways I'm afraid. In meanwhile mirrorless camera's are performing better and better, but more so, provide dedicated videofunctionality that's lacking with dSLRs. And you can redicule the smaller sensor all you want, but it can keep up, but another prominent benefit thereof is keeping lenses very compact! That in combination with a small camera already opens up a world of possibilities and advantages allowing for small run-and-gun videomonsters that pack a punch. I'm personally very excited for the Olympus OM-D E-M1 (which I'll probably be getting next month to upgrade from my GH2), especially because of the built-in stabilization. This should be a standard on all digital camera's! I'm using prime lenses most of the time anyways and especially with the MFT pancakes, you have sick possibilities in the smallest of packages, though still giving you stellar performance.
To take it to the next level we need high bitrates, focus peaking, various fps-selections including 1080p at or above 60 frames per second. 2.5K already would be awesome for implementing in your 1080p projects. And then deliver 4K and uncompressed output for people who want to really get jiggy with it. That is the future! And mirrorless camera's are starting to give it to us already! You got to love the day and age we live in. We get to experience all these next levels! And it's starting to get more accessible and affordable as we go along.
Things are moving in the right direction. It's just a matter of who takes it upon themselves to ride the wave... :lol: