In the ultra-select enclave of Montecito, near Santa Barbara, a huge mansion makes a lot of talk. Not for its swimming pool or tennis court, but for its look deemed "exceeded" by some wealthy neighbors. In the people's press, the expression "this is the laugh of the royal family" circulates to tell how this property, in the heart of the new Californian life of a famous British ex-royal couple, would be mocked in the neighborhood, where it usuall…