So? Maybe it is in the Talmud. If that principle or rule never is enforced in the daily religious life or in the liturgy how can you think that is part of today´s Jewry? On the flip side, the religion John refers DO carry out those (mosaic) rules just as some communities did in America during the 17th century. Most people would think that is the important issue here. You cannot just throw away a whole religious discourse just because of one sentence - read the Bible for instance. If the Christian priesthood as well the common Christian do not adhere to the stoning rule - you cannot brand that "Christianity", not in any understandable sense anyway. It is part of the Christian scripture yes, but not part of Christianity as of today. Because that what is not preached, prayed or acted upon by Christians in general, well that is not Christianity. It is not sanctioned by the church, priests, bishops or the Pope. Not part of any Papal bull or Protestant Catechism.
Three minors arrested in Jaffa for throwing rocks at a bus; no injuries reported (Haaretz)