[Tim Delles]

Here is my 2 cents since i watched it happen

71 and 1270 were both going for a spider leg. 1270 hit 71, which caused 71 to begin to rock (maybe 3 times at most). While rocking 1270 drove up under 71. While 71 was tilted back and on 1270, 1270 continued to drive forward, thus tipping 71.

To the ref this would seem like an intentional tip, because 1270 didn't stop moving to show it was not there fault if 71 flipped. If 1270 had taken their hands off from the joysticks so the ref could see they were not moving, and 71 had still fallen over i believe the call would have been different.