True not recent. But the Angles and the Saxons had their lands taken away, their language subverted and were repressed by the Norsemen... So not "recent" but also not "ancient".

Incidentally a group known as the "diggers" did seek some redress from their successors.

In any event, bones are bones. I feel that after certain cut-off point, they become historical and are fair game for archeology. It's another story if it's an active or tended to graveyard --but if it's not known and is forgotten, then I think it's a fair archeological site.