I'm very conscious that this is not a political conversation so I'll leave this by giving my reasoning here and try to be apolitical so that I can leave it at that. If you're keen to have a conversation about it though, happy to through private message. I'm a big fan of having meaningful and respectful conversations with people you don't necessarily agree with. (Great way to get a different perspective that you might not otherwise consider).
So anyway, why I think Peta would be a bad idea for hosting:
1) She'd never go for it - she's vocally socially conservative and I think a lot of the conversations and other facets associated with BB would go against what she believes in.
2) I work in a role where I need to be all over politics. Both when Peta was Abbott's chief of staff and now that she's a political commentator on Sky, I have found her to be extremely biased and extremely inflexible to other people's opinions. I personally fall in the centre politicly. Tilt to the right on some issues; to the left on others. I agree with some of what Peta has to say and I have absolutely no doubt she's a highly intelligent woman. And yes, a trailblazer for females in power. However, she fails to come to the table when it comes to debate and will shut down the conversation if someone criticises her argument. If you thought Gretel was hostile with housemates she didn't personally like (despite what the public's view of them was generally), wait until you see PC attacking them without allowing them to get a word in post-eviction. Just try mentioning one of the (objectively) poor decisions Tony Abbott made while he was PM and she was chief of staff.. you'll soon see what I mean.
What if she was offered an enticing pay and the opportunity to have creative input?
I think Australia is conservative in some ways. Credlin's character could add a different perspective than what people might associate with Big Brother.
I want the audience to be diverse end not just left-wing people or Instagram influencers.
Maybe Credlin is not comparable to Gretel politically. I am unsure what Gretel is, but I think Credlin can be tough like Gretel appeared to be.
I want a host that has some opinion and I do not want them to be too objective. Occasionally I want an opinion from them.
I like Sonia but she did not seem opinionated enough to entertain me. I do not think she was suitable for Big Brother.
If Credlin can let housemates speak and then offer her opinion respectfully then I think she would be a strong host.