Once adored for their pristine blowouts and dutiful silence in our age of the Kardashians, Kate Middleton and her husband, William Arthur Philip Louis Mountbatten-Windsor, draw jeers these days. Loud, jumbotron-ed boos smack in the middle of their first stateside tour in nearly a decade, a three-day visit that barely registered with bored Americans. “Jesus, Mary, and Joseph?” Celtics head coach Joe Mazzulla responded, looking dead serious when asked whether he had met the royal couple during their attendance at a Celtics game.