People did not think she was genuine. They disliked her so much, that they picked a TV personality, said stupid stuff and off-color remarks. That says a lot about the level of disconnectedness between what she/her team/media thought of her and what a lot of people, even traditionally voting Democrats thought of her.
I guess nobody around her who had an inkling dared to raise their hand. Can't even imagine what they'd say "Ma'am, people don't believe what you are saying, can you be more genuine a bit?"...