I briefly saw him, but I hardly recognised him. I think that Chanel 7 is responsible for what he wears really- so don't blame him for it. Personally I didn't find it that offensive- lots of people wear Akubras- I do, and I didn't actually see the driz-a-bone.
I didnt see the show but i dont understand how being dressed in an akubra hat and a driza bone on would be classed as bad taste, it is australia after all.