After enough time has passed, records and analysis of excavations may be lost and proper archeology just becomes looting again. It's possible this has already

After enough time has passed, records and analysis of excavations may be lost and proper archeology just becomes looting again. It's possible this has already happened; for instance in Egypt where ancient people might have dug up far more ancient ruins while properly writing down and cataloging their findings, but those records have been lost to us and we remember them as looters.