… the new prayer for the Jews for Good Friday is important, but not for the reasons most people will focus on.
I don’t think this is important for ecumenical dialogue.
It is, hwoever, very important for the liturgical life of the Church because the 1962 Missale Romanum is now demonstrably a living liturgical book of the Church again. It is not a museum piece or a fly in amber.
The Holy Father changed those prayers so that the older Missale could be used more readily on Good Friday.
The Holy Father wants the book to be used, even on those important days of the Church’s year.