I don't think that's what's being suggested. The idea that redlining should be reexamined by the courts every half century or so is what's being suggested. In 2018, courts ought to find its still illegal give facebook a book fine. In 2118? Hopefully we'll be past racism and courts will find the concept obsolete and antiquated. Or they may find racism is common but the tools needed to manage it are different.
The Internet has a great search for secret closet racists, but they're pretty rare. For the most part, it makes sense to give people the benefit of the doubt.