This "attack" is not really an attack, IMHO. When we went to Rottnest, everyone could only get round by bike and still there were dead quokkas all over the path. They leapt out from the undergrowth, maybe sensing food and you'd have to stop your bike quickly.
I recall one quokka looked up, as this one in the vid is doing, clambered up my leg and onto my shoulder, then leant forward and peered round at my face. After some time, dissatisfied, he jumped down again and hopped away. I'll always remember that.
The other place to go, in the West, is Monkey Mia, much further north, where the dolphins can be fed.
[This post is part of #Silly Week.]