Okay, so let's go through those points:
- greater DR, the 5D4 has 13.6 or more DR, well above the 5D3.
- greater high ISO, the 5D4 beats out the 5D3 by 1 stop, or more.
- the SD slot is no longer crippling the buffer speeds/fps like on the 5D3, so who cares if its UHS I, II, or X.
- DPAF is useful for more than this bokeh/AF shift you might get with the raw feature, I doubt that many people are going to shoot using that mode and have to deal with 70Mb+ files anyways. DPAF is much more than this raw feature.
So I am not sure what you are looking at or reading, but the technical folks have already gone through the raw file and DR and ISO testing to show these to be bonafide improvements over the 5D3. Not to mention there is a plethora of other new features and capabilities that puts it above the 5D3 and 5Ds/r (other than resolution of 30 vs 50 for these latter 2).