Low, in absolute terms. Relatively, its incredibly high.
Like 40 times higher. As I mentioned, it is possible they could be hit by a meteor, but even more unlikely. By your logic, the realaroce risk is nor important, so we could just as easily say that’s the reason for the cancelation.
Nobody said it was impossible to get shot in Australia. It just doesn’t make sense in context to be a reason to cancel shows in Australia.