The same thing ( re your theatre story ) held true, for what some black radical morons said about old Hollywood movies, in the early '70s.
The latest "WUTHERING HEIGHTS" series, with the Mulatto Heathcliff, who couldn't act his way out of a wet paper bag...that one? If so, I concur...it was unwatchable! And I've never liked the book nor the Olivier movie to begin with; however, I did give that latest version a look-see and couldn't abide with it at all.
A mulatto Heathcliff??? Rather, odd...
I will say I first was introduced to the story through the Olivier version and cried until no tears were left. I adore Olivier.
But when I read the book, which I also love, I was shocked and horrified at its endless cruelty and brutality. And why not? Emily Bronte was no idiot lass; she was a mystic, an intellectual and a fierce and brutal woman who endured everything from galloping consumption to rabid dog bite without blinking an eye! She was also the family’s cook which is another reason I adore her. And she put up no sh*t from employers who thought they could steam roll her, lol.