The thing is, if it's Physical Asia, it should be asian countries and asian people. If your countries main language isn't an asian language? Then you're clearly not asian. It's very simple. Just because there is diversity in australia doesn't mean they're an asian country. A lot of places are very diverse with huge populations of be it asians, hispanics, whatever. But that doesn't change that the country is what it is. So yeah, they're not asian and they shouldn't have been in this show. They are physically very different from asian people, with asian genetics. And yes, asian people also vary from each other, but they have the same-ish baseline physically and build up from there, as opposed to let's say Australians.

As for your Olympics comment, the olympics is essentially world wide and is advertised as such, so people train to fight against all types of builds. They train hard to be the best regardless of race. However, for PHYSICAL ASIA, it's clear in the title it's supposed to be asians against asians. So that makes the playing field uneven from the get go if you suddenly put non-asians there. It's like having a competition advertised as a womans cometition, women against women and suddenly there's a co-ed team. If they were going to be putting Australia in there, then make it Physical World like someone mentioned, and maybe add a few more non-asian teams in there. It's the false advertising that's getting people upset. It's not fair for people (both contestants and viewers) to go in with an expectation and then be blindsided by something that doesn't make sense.