Additionally, a lot of the language was very out of date with racists and discriminatory undertones so parents had stopped buying the books. It was driven by the market because if they didn't adjust the content to adhere to what parents expect in children's literature today the stories and moral lessons would be lost to the dustbin of history and merely interesting historical artifacts.

I would regularly see stories on Reddit where someone was gifted one of the more borderline Dahl novels and they binned it rather than giving it their child. I'm sure their internal metrics were painting a similar picture.

That's bad for business. It wasn't change for social justice. It was change or watch your IP die and everyone involved still wanted the money.