Yeah, saw that video.
I got attacked by one once for a loaf of bread I was carrying in a caravan park. Tourists are asked not to feed them, but can't resist. So this fella thought he'd try for my bread and grabbed me and started to wrestle me, I still have the claw scar on my arm. I punched it in the head and it had second thoughts. My biggest concern was it might turn on my 3 year old son who I was with at the time.
That's pretty intense.. you wrestled with a kangaroo! I probably would of just dropped the bread and ran lol you are brave!