Well I would love to have his explanation of the system from the Ford engineer that he claimed at the end of the video. And technically his video does not prove we don't have a slip n grip AWD system by definition. It could still be just responding to slippage, just extremely quickly. And I don't think that is a bad thing. Now that being said, the AWD graphic on the dash really makes it seem that it responds to throtte input, but that's just a graphical representation and possible gimmick. I personally think it's a combination of factors that controls where power is being sent including slippage. The complete absence of torque steer is not due to a system that is redirecting power(~400lbs tuned) purely upon wheel slippage. No we don't have the sweet RS AWD system or Subaru's system, but it's much better than many AWD systems out there.
I agree, it does not prove or disprove anything...
BUT:
On dry pavement, it does not slip as far as the ear can tell. It just goes, and quickly too...
In the snow (almost bottoming out the car snow), I can't tell if it slips or not. I can tell you goes there too and really well...
Whether it detects slippage and engages in a few milliseconds (maybe 16 to 17ms), or the computer engages it based on the throttle and a combination of things really does not matter to me in any way...
If you can tell the difference between instant (0.000 seconds) and a few milliseconds (0.017 seconds) without sophisticated measurement equipment, you may be an ultra sensitive person???