Any art is a reflection of the society in which it was created, a reflection of both its flaws and strengths. To ask that revivals remain static flies in the face of what makes good art, because it’s mirroring back a time and place that is so far removed from current society that modern audiences can’t connect.
This is why God and the lawyers invented intellectual property rights. Since Congress redid the copyright law in 1978, with some exceptions a book or a play or a film retains copyright protection until 70 years after the death of the author. So if his or her work is to be torn into shreds, at least the author won't be around to see it. Copyright protection for a newly minted play of about a century. The play must be licensed from the holder of the copyright, who can put conditions on the license contract.
To go on a bit with Jane Austen and Pride and Prejudice (her best known noble was cited as second most popular book after Lord of the Rings in the UK. It was voted best novel ever written by Australians five years later in 2008). It has themes limited to the time. One could specify in his or her will that the person's estate go only to a male from that family. Also, running off to elope with a man of questionable character and no money resulted in the whole family being on the out socially. But I think that the long and lengthy popularity of Pride and Prejudice pretty much shows that historical setting is not a problem.
I suspect that other shows only get in trouble when they deal with issues that are still hot button right now.
Abuse of women or racial minority or sexual minority -- sexually, physically, financially or verbally.
Feel free to add others.
(Physical attack on whites by racial minorities is OK, as I found out on Human Kindness Day 1974 when I was punched, kicked and robbed of my grandfather's 18 kg retirement watch by a group of four or five young teens on the Mall in Washington solely because I was white. ("human kindness day."
So how do you decide whether an instance of one of the above?
I really don't feel qualified to make the determination and I would not want to be part of the decision making. I say case by case because this is something close to the best we can do when there are hardened positions on both sides. Negotiate.
In the infamous "spanking" episode of the late Kiss Me, Kate (and Ivy is going to be all over me for bringing this up again), I am in a pretty good place to judge since I saw the first preview, the last preview, and the handling of the scene at the end of the 2012 London revival which originally featured Marin Mazzie but ended with Rachel York. (The DVD of this is available on Amazon for $12.89).
At the first preview the scene was chaos. There was no attempt to make the spanking, although it was threatened, but the parties just kind of circled around each other seemingly not knowing how to end the scene. The curtain did not abruptly fall and the performers in front of the stage did not appear.
I loved Rachel York in the London show. Rachel landed a whole bunch of slaps and kicks, but finally Brent Barrett grabs her and gets in four or five spanks before the curtain falls abruptly and the poor performers did their jig as ordered in front of the curtain. Meeting backstage, Rachel got in a hard last slap that left Brent whining about his eye bleeding as Rachel walked proudly away.
So what they wound up with in Roundabout was pretty much adapting the London scene very closely, but when Will went to grab her to put her over his knee, Kelli ended up sailing over his leg and falling to the ground as the scene ended in chaos, the curtain fell, and the funny dancers did their bit in front of the curtain.
A beautiful compromise, I thought.