Nothing has changed than.

In the rural areas of eastern Europe, Jews who were killed in mass shootings were often buried collectively in mass graves – many times dug by the victims themselves – in ravines and forests near the towns where they lived. Many are still unmarked or undiscovered

https://aboutholocaust.org/en/facts/what-happened-to-the-dead-bodies

I bet the Eurovision song about this will be a banger though.

Did anyone genuinely expect them to be marked?