We saw Iphigénie en Tauride last Wednesday, and the curtain fell not only on the last opening of this season, but on the Pamela Rosenberg era. There are still three more performances of Iphigénie to attend (including one tonight; plus three Rosenkavalier and two Don Giovanni), so it’s not yet time to look back. This season was the last that Rosenberg planned (before her successor at the helm, SF Opera general director David Gockley tweaked......