They just want/expect to be nodded through without answering those kind of questions.
Rigby's questions, whilst direct, should have been anticipated and thoughtful answers rehearsed.
They (all the candidates I've seen so far) just don't seem to have anything in the tank beyond talking up wedge politics and giving the "unite the country" flannel without ever saying how they would achieve that.
I hope they've got more detail & policies to come because otherwise it just looks like flimflam in expensive suits to me.