Is this a new thing?

If a group of people X did bad things in the past and they are no longer affiliated with Z. Why should learning more about those bad things in the past affect your current interactions with Z? It’s essentially a different group of people.

It’s similar to the issues people have with Europe over the crimes they committed in the colonial era. People are legitimately upset about it, but judge the current governments on their recent actions. Time scales are of course different, and it does not excuse future transgressions, but those our judged on their own merits.