Why are we talking about banning books? The Association of Library Service to Children renamed an award, that's all. It's now the Children’s Literature Legacy Award. Wilder isn't harmed by this, nobody's saying you can't read her books. The only impact is that her name won't be in a press release twice a year.
The problem is, some people may hear "They removed her name from the award for a reason. She must be a bad person. And anyone who reads her books must be a bad person as well".