of a theological debate that has been ongoing for literally millennia and just gives the talking points from the side that resonates more with him.  That doesn't mean that he fails to understand what you consider to be the "checkmate atheists!" smoking gun.

Hence, his conclusion that an all-knowing, all-loving, all-powerful God cannot exist is just another oversimplification of a very complex reality.

Hundreds of books from religious scholars of all stripes and faith traditions have been written about the problem of evil from every philosophical viewpoint imaginable.  Some of them reach the same conclusion NDT did.  Are they also failing to consider a very complex reality?