Where did you see the no AFMA? Other than that I can deal with the other stuff.
So has anyone CONFIRMED that there is no MFA or are we just playing chicken little?
The 6D does have AFMA. From the Canon USA EOS 6D page, Features section, in the description of the 11-pt AF system:
"For even more customization, adjustment levels for the wide-angle and telephoto ends of particular lenses can be entered and recorded into the camera’s memory."
So...yes to AFMA, and yes to W and T adjustments for zooms, like the 5DIII and 1D X.
But IMO, other than the -3 EV center point for low light shooting, there are really no redeeming characteristics of this AF system specification. Point spread no better than the 5DII, two more selectable points but four fewer points in terms of Servo tracking (which wasn't the 5DII's strong point anyway). Sure, the -3 EV is nice, but not salvation by any means given the frequency most users shoot in light that low (my 5DII, spec'd to -0.5 EV, could AF in light that needed ISO 25600).
Only one cross-type sensor, and that one not even a dual cross.
Now that the 60D's 9 cross-type AF with center f/2.8 dual cross has trickled down to the T4i/650D, IMO the Rebel line has a better AF system than the 6D.