Mr. Harris makes some good points, but I don't see it disproving the possibility of a creator. It's true that between the many different religions, there exist contradictions. It does in fact seem like we're all going to somebody's hell.
However, if you ignore the individual institutions and just look at the question as 'is there a creator or not?’ there is as much evidence supporting this claim as there is refuting it (which is to say: very little). I look at things like the eye, and other complex systems essential to life on our planet and it's easy for me to imagine a sentient hand behind it all.