I didn't see that episode, but to be fair, I doubt anyone claimed that this practice was representative of Hinduism. However, it's true that viewers who know nothing about the subject might come away thinking that it is representative.
Reza Aslan is a Sufi Muslim, not an atheist, so his agenda isn't so much showing that all religions are bad as the liberal view that all religions are equal and morally equivalent. As I said in my earlier post, if that was his intent, he failed miserably with his choice of examples.
OK. Reza Aslan is a well-known hater and slanderer of Christianity.