Cj, Cj, Cj.... the Echidna is one of the most friendly of Aussie wildlife you can find.. Those deadly creatures in Australia have nothing to do with a certain peaceful species - Even the Platypus is only barbed if it is male, so.. and you can avoid more than 50% of those dangerous animals if people stay out and away from the water. You also can't count the Great White Shark as a native Australian since they are found in the Mediteranian, South Africa, and the American Coasts as well. Factoring in that the Australian Dingo is a mere Coyote in comparison not a wolf, the Black widow is just as lurking and numerous as the Funnel Web, we have Cane Toads in America too... So what if Aussie creatures once they get hold of you are more deadly, there's only like two on your list that are common around homes and people. Eastern Brown and the Funnel Web Spider. To summarize, Australia is no less dangerous than anywhere else on this great planet..
BUT on the other hand, Goats with their horns are far deadlier and on CLIFFS of all things... Also, they've been known to climb and fall out of low branching trees on top of poor unsuspecting passers by.