I am being 100% sincere because I think, frankly, this is a lot of performative outrage and hypocrisy. These are not nudes sent in confidence from one individual to another. This is not an intimate setting between Williams and a partner. This is a Broadway production being seen by thousands of people in 2022. Discussing this in terms that until recently were reserved for things such as revenge porn is obfuscating the point and, ironically, has shades of a puritanical view of the human body.
At the end of the day, it doesn’t matter whether someone is nude onstage or not (and there has been plenty, plenty of nudity of onstage): the rules are the same. If the producers of Funny Girl had decided to have audiences lock up their phones so Beanie’s vocals didn’t leak out, would people be as accommodating? Would they be as outraged when it is inevitably breached? Most likely not.
If the idea is that theater stays between the performers and the audience, in the performance, as an ephemeral thing, then it needs to be consistent, not convenient.
"...everyone finally shut up, and the audience could enjoy the beginning of the Anatevka Pogram in peace."