Another way to see it is that a lot of dangerous animals are missing and were erradicated in other parts of the planet, from European rhinos to tigers in temperate forests, Australia is very creative in terms of poison makers, this is true, but America has tiny letally poisonous frogs, trees that release a sap that corrodes flesh and have a sweet fruit that will kill you later, and grizzly bears that can measure more than 3m when standing erect.
If I'm not wrong there are similar species in South America mountain's rainforests. I had seen a photo some years ago, with similar berries, and linking yummy looking jelly-pink berries with stinging nettles was very shocking.