Wow, very interesting read. Happy that you guys seem to have found the issue, but it's sad that the "fix" is such a constant inconvenience (turning it off every time). To me, this really sounds like this needs to be looked into by Ford. So many people with similar results can hardly be random.
The fact that one feature of the car severely hinders another is not acceptable and could even be considered dangerous. The choice between having transmission issues and having no traction control is not a choice one wants to make with a car that is supposed to have both working.
I'm curious to see what the corporate engineer has to say about this...