>And why is that past tense?

because the Church has issued "nostra aetate", which was written by ashkenazi jews Gregory Baum, John Oesterreicher, Bruno hussar. This was a political decision driven by aftermath of ww2 and coordinated by the World Jewish Congress and had no basis in theological nor facts nor any other legitimate reasons.

>Toaff withdrew

of course, he withdrew because people did not like the original research he published. He literally received death threats by people who did not like the facts, so he decided to withdraw and self-censor out of caution for his own life.