Folks,
You will recall that the Holy Father is given to calling up, attending the weddings of, and otherwise getting involved with people he doesn't know from Adam.
By contrast, the FSSP, stalwart defenders of the hermeneutic of reform and continuity, gets a letter delivered by Cardinal Ventura, the nuncio to France, on the stationery of the nunciature, saying that the Pope sends his blessing .
Let me express the letter's real message:
"My attitude to you, Fraternity of St. Peter, is indifference verging on contempt. You're not important enough for me, or even someone else in the Vatican, to do up a letter. All the attention any traditonalists will get from me is the occasional denunciation of those who make their attachment to the Old Mass into an ideology."
How's that for a pastoral communication from a shepherd who knows the smell of the sheep?
This is no news to the FSSP. The laymen who do the work on Rorate Caeli have made no secret of their abhorrence of the Holy Father's words and deeds, and the proprietors of the site are a half-dozen FSSP priests.
The Holy Father probably doesn't know anything about this; and if he did, he probably wouldn't care. He doesn't think enough of Tradition to hate it, or think it important enough to attack.
You might call it practical excommunication.