We’ve grown accustomed to the premise underpinning the HBOMax series ‘Allen v. Farrow,’ directed by Amy Ziering and Kirby Dick. Yet another heralded male celebrity, this time Woody Allen, is exposed by accusations of sexual assault. Yet, what’s most disturbing about the details uncovered by the investigative work in ‘Allen v. Farrow’ is just how much hid in plain sight—for nearly 30 years.