Sounds like that guys was not in a very good head space. If that road gets empty to the point he felt he could hit that speed safely then fair enough. If you're only putting yourself at risk and you accept the consequences and are in a sound mental state to make that choice, in my opinion it's fine. But if it puts anyone else at risk, like his passenger or the other drivers that called it in, then it's unacceptable.
I'm heavily bias because of how much time I spend on the road and the stuff Ive seen road law enforcement do is disgusting. Tho, to be clear I don't agree with that guy doing 250 where he did.
Would be nice if Aus had better road construction, traffic management, high speed lanes etc. There's so many issues with roads, law enforcement and motorists.