[ebb tide]

“About the Sacraments and the Liturgy: look, he hit the ground running with Summorum Pontificum within two days of its publication.”

That is not true! At that point in time, Cardinal Bergoglio only, and finally, enforced “Ecclesia Dei” (issued by Pope John Paul II way back in 1988).

The Cardinal never followed Summorum Ponticum, as commanded by Pope Benedict!

[Mrs. Don-o]

According to Hermeneutic of Continuity (Link), there are Tridentine Masses all over Argentina. There's even a map showing regular Mass sites in accordance with Summorum Pontificum --- i.e., not SSPX.

All I know is what I see from Argentine websites like the ones cited here: Clarin.com and Una Voce Argentina.