@stonewall008 Honestly, I understand your points, but I feel that most people play passively and give nidalee the room to do what she wants, and as well people don't exploit her weaknesses.
She has no AOE pre6, she lacks escape pre6, she is super squish, she has 1 damage ability pre6, her team fight is really bad, yet she is great for cleanup.
Most people play super passive versus nidalee, and in great part I blame junglers as well because they do not abuse the fact that she is so prone to ganks early, people try to dodge and for that you need some distance to be able to react when the best approach is exactly the opposite. Lastly nidalee is a champion that his team cannot rely on when team fighting comes, so why not take advantage of that?
I don't want to put out that I know everything, but that is what I have gathered from my experience.