Stories like this make me wonder why anyone lives in Australia, since virtually everything seems to want to kill you. Or perhaps Aussies are tougher than the rest of us.
Yes, sure, we have some deadly snakes, spiders, crocodiles, a few plants like in the OP, etc. But so do many other countries/regions around the world, including the USA.
In practice, the vast majority of Australians never have any contact with them, and actual cases of people being killed or seriously harmed by these things are extremely rare, and are much less common than fatalities/serious injuries from traffic accidents, which also have quite low rates by international standards.
Australians like to think of themselves as tough, but, I dunno, we're pretty much like most other people around the world in my experience :)
Edit:
Some actual data:
There were 541 animal-related deaths reported to an Australian coroner between 2001 and 2017, with an average of 32 animal-related deaths reported per calendar year. Land mammals comprised the majority (71.0%) of deaths, followed by reptiles and amphibians (10.7%) and insects and invertebrates (8.7%).
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Nearly one third (31.8%) of animal-related deaths involved horses.
https://www.ncis.org.au/wp-content/uploads/2020/03/NCIS-fact...
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In the same period, nearly 25000 people died in traffic accidents, according to https://en.wikipedia.org/wiki/List_of_motor_vehicle_deaths_i...