They were clearly using X-Mode with the other tests and it appears that it was enabled in the test the Outback failed. It also looked like they kept backing off the accelerator in that failed test and I believe with x-mode you need to keep adding more acceleration or keep it constant to get x-mode to fully engage.
The roller test shows the obvious front torque bias of the OB. Easily drove off rollers when front tires were on pavement but engaged spin control more when rear tires were on pavement. Also evident in the three-roller test, highlighted in the one test failure.
(Looks like the exploder may have rear torque bias)
A couple of other observations:
Seemed like they drove the OB at more speed on the uphill tests. I wonder if that is a power/torque issue and the test was done at the slowest speed that would summit.
It looked like in the second hihgh speed collsion avoidance test for the exploder, one of the camera dudes at the end of the chute was sitting with legs crossed. No way he could move fast enough if the test car went off trajectory. Should be one camera person and a spotter, both ready to skedaddle.