And what would be "their" level?
Can has answered 99% of all complaints, suggestions, and issues with the 5d2 and added extra software and really upgraded the AF over and beyond nikons and people still aren't happy... People are comparing features, griping about this and that before the freaking camera has even been released and put through the wringer... People are declaring it inept without actually shooting it... Every camera release canon has had, except for the 5d classic has always been met with harsh criticisms and i'm frankly tired of hearing people groan... crap or get off the pot.
Aside confronting it with the competition (and rightly so) many people do have expectations after a theoretical 4years of R&D; slapping a hacked up AF/meter from 2 other cams to replace a decade old one and a sensor that its novelty is more geared towards videographers is bound to leave many people unhappy.
If Canon pumped out the camera before nikon ever introduced a D800, no one would be griping about DR, no one would be griping about ISO, AF, etc... it would have been praised as the camera all others would be measured to because of lack of something to compare to.. How is the 1dx AF system in the 5d3 hacked up? Seriously? It's the same damn system, just no IFCL meter, which is just for advanced tracking and metering... Even with that, it has the 7D meter... i haven't heard anyone on any blog ever complain about the 7D meter... It's not the newest or shinest, but it's a better combo than the 1d4... seriously, when they're tested i'm sure the 5d3 will stand up well against the D800's AF if not surpass it, much in the same way the 7D's AF rated higher than the D300's. the sensor size is a nice fit, a nice compromise, and when I was asked, and the general consensus of other pro photographers, very few were asking for more MP... I said, and many others on this forum, that our dream camera was the 5d2 sensor in a 7D body and AF... Canon delivered, and went way beyond...
And for me its this people and this fuzz that pushes companies into fixing things rather than people "up your level" who are happy with whatever Canon throws at them.
Get off your high horse... I'm more than happy to use/want/evolve my photography, my business, my career to meeting my clients needs as they change through the years... Any photographer who doesn't is being left behind... But in the end, I am grateful Canon did listen.. I'm grateful for no 30+ MP... I'm grateful for class leasing AF system, even when compared against nikons D700/D800... I'm grateful for video when my clients just so happen wants a short video for their website, the more they use me than look for someone else to do it, the longer I keep the client... I'm grateful for more usable ISO's for when the rare times I will need it. You're unhappy, i get it, but dont drag others down who are.