All new Australian installations to wet areas are meant to have RCD (Residual Current Device) breakers, that trip at less than 20mA in less than 50ms,
The issue is that there is a lot of older houses from before this requirement came into be, and even more home-gamer installs who replace out the RCD for a normal breaker because there hairdryer keeps tripping out, or something similar, or the RCD was never installed in the first place.
If your charger was in an RCD breaker circuit, you would survive in almost all cases, generally its only very young, very old, or people with heart irregularities that they cannot save every time.
Still its a pity that these dodgy chargers keep on being sold with very little alternative in actual store fronts, no one wants to pay $40 for a wall charger, but at the same time, when the change for proper insulation would be cents worth of work, why don't they do it? I get profit, but building lethal shit should atleast nudge people away from it.