Speaking of friendly episcopal reaction, the Saint Louis Catholic details Archbishop Burke on Summorum Pontificum.
For myself, here is the take away tidbit from the piece, which in my mind serves as a model of a good response that can heal any divisions that have occurred, and be for the benefit of all:
"...courses of liturgical formation pertaining to the Roman Missal of Blessed Pope John XXIII will be provided for priests who desire it. The seminarians at Kenrick-Glennon Seminary will be provided the liturgical formation necessary to celebrate the Mass according to the extraordinary form. Their studies of Latin will also give attention to the texts of the extraordinary form."