Say what now?
If you choose to see things that way, that’s on you. In truth most people are not looking for him to ‘bring the truth down from the mountain’. He’s looking to entertain people and maybe make them think about a couple of things from a different viewpoint. That’s it. My understanding is that he hasn’t claimed otherwise.
It’s entertainment. To Kill A Mockingbird was an entertaining movie, which made people think about things, lots of movies do the same.
It’s a movie, not a thesis. He’s an entertainer not a researcher.