The horribleness of KH aside (a very well know fact) why is there so much denial about why she was in Australia? (Or are least it is as portrayed by that article).
The TV Channel.seem to be trying to deny they had anything to do with her presence In Australia. Do they think it's believable she just turned up.in Australia and gained entry because she wanted to be on the show. (The government seem to be trying to spin a similar it's no our fault she's here - did she grant herself a visa and entry?)
She'd have been selected purely because she will be controversial. I'd hazard a guess that who every the other contestants are they will be people who she would clash with.
Mind you it's also odd to try make out Australian reality shows are made because they are so wildly popular in Britain and see no success in Australia.