Are things like this legal in Australia? Specifically presenting this as a way to diagnose Covid19?
I don't think quacks selling chiropracty and crystals are a uniquely Australian thing.
She's probably gets away with it by practicing in the holistic grey area, or she's completely unlicensed, one of the two.
I want to be clear on this. I'm not stating that this particular problem is exclusive to Australia. I'm simply mentioning that because this video happens to come from Australia and I am not aware of Australian law.
Crazy/Snake Oil salesman exist around the world for sure.