I think I do to and for teo reasons
1) the standadd american accent is kind of bland and isnt very adaptable to a funny exagarted accet. Australian accent though us hilarious when an American or anyone who cant do one tries some ridiculously bad exagerated attempt. It just sounds sillier than an American accent when someone does each wrong.
2) I dont care what anyone says or tries to pull. North Americans are miles ahsad better than Euros, Brits, and Aussies at stand up comedy. The tops standuls from here and Canada are just way better at the craft than other anglophone countries are.