Regarding the prayers for the perfidious Jews, Catholics never genuflected at the prayers to the Jews till Bugnini changed that. Abbot Guerranger's Liturgical Year (1854) tells us the reason is that the Jews mocked and derided Our Lord by genuflecting to Him.
In this new "indult", not only do they now genuflect to the Jews but they also changed the prayer to make it even more "ecuмenical" to the Jews than Bugnini's was.