The dishwasher’s (any appliance really) owner/operator is only liable if it’s established they have used it negligently. Good luck with that re dishwashers.
And where do you get that information from? Please quote a source. An NCAT ruling? An insurance company’s website? Anything?
I have a fully integrated dishwasher and I can see where the water input hose and the waste pipe connect to the mains (under the sink). If they burst, I would be liable (if owners corp insurance didn’t cover it).
Your personal experience and your opinion, regardless of how often you repeat it, is not necessarily fact.
I provided an authoritative source for my view. How about you back yours up with, say, a link to a website?