the 70D is already a better general purpose camera than the 7DII.
I agree, as long as you get one that accurately focuses with wide-aperture lenses and meters bounced flash correctly.
The 7DII is a specialty camera. Canon has clearly conceived it as the APS-C body for the pro sports/wildlife shooter who wants a second body for their 1DX and might like the longer reach.
It would interesting to know what percentage of 7D II buyers are professional photographers. I'm sure Canon took into account their enthusiastic amateur clients during the product planning and development.
They no doubt pick up plenty of bonus sales from people who buy it just because it has a nominally higher model designation than other APS-C models
I expect there are many more sales to amateur enthusiasts who find it the best fit for their requirements.
but, really, most people who shoot a bit of everything would be better served by a 70D or even a 760D.
I agree, especially if they intend to shoot video (flippy touch monitor is definitely the way to go for that).
True.
But good value for the level of performance.
(slower single shot AF as tested by IR than 70D due to ridiculously complex focusing algorithm),
Your adjectives reveal your prejudice.
IR's tests are interesting to read. They don't mention the setting they used for One-Shot AF release priority on the 7D II, so it would be interesting to see what a difference the two cases would make to their "Full Autofocus Single-point (center) AF" test. The 70D doesn't have a setting for that, so I presume it would operate with "Release" (rather than "Focus") priority in that test, which could account for a significant difference. I can't recall any 7D II owner complaining about One-Shot shutter lag, or saying they would willingly trade some focus accuracy for a shorter lag.
The 7D II is faster than the 70D in the IR reviews for things like power-on to first shot, buffer clearing, prefocussed shutter response, and Live View AF, so it's hardly credible to dis it based on just one aspect of performance.
It seem like Canon were able to make the 70D PD AF a little faster than the 7D in many aspects. That could be due to improvements in various things, but I wonder if it does reflect a compromise to achieve more responsiveness, and whether that has anything to do with the gross inaccuracy some units have with wide-aperture lenses.
no touch screen, no wifi, indistinguishable image quality from 70D (despite Canon's claims that it's an upgraded sensor), probably slightly inferior image quality to 760D.
The 7D II raw shots look cleaner to me at high ISO in DPR's studio scene comparison, and that's what we're finding with real world high ISO shots - they clean up very nicely compared to shots from other Canon crop bodies (though it's such an insignificant factor in the impact of an image that no-one should base their purchase decisions on such things). If IQ is a major priority for your DSLR you should be looking at full-frame.
Seriously, if I was offered the choice for free of any of the 3 bodies mentioned the 7DII would be the last one I'd choose, unless I was also offered a job shooting sport. Then it would be the first choice.
Sure, it's a very personal thing. The 7D II is also a good choice if you're shooting things like wildlife with long lenses, or birds in flight, for your own pleasure or non-professional work, and don't need the flippy touch monitor.