If you personally agree with a reconciliation with the French Republic or Liberals in general, of course I cannot object to your reasoning. It is also true that the "Rampolla-Popes" where not the first one who took a similar stance, the most renown may be Pius´ VII. attitude towards the French Revolution, Bonaparte and the following schism among Catholics.
But just some quotes from the text you gave:
We have already seen what was in 1913, certainly not flattering opinion the Archbishop Cardinal Rampolla by Benigni Tindaro. We know that, in turn, Cardinal Gasparri had a low opinion of Msgr. Benigni and Sodalitium pianum, to the extent that the Secretary of State to Benedict XV and Pius XI testified against the canonization of Pope St. Pius X because Pope Sarto had encouraged and supported this association and, in general, the purely Catholic positions.
"Between the modernists and anti-modernist, there was a 'third party' by Cardinal Mariano Rampolla del Tindaro ( ... ). Rampolla, in 1901, chose as his collaborators Mgr. Giacomo Della Chiesa, and Msgr. Pietro Gasparri. ( ... ) Pius X, having appointed Cardinal Merry del Val Secretary of State, had removed from the secretariat of state both of Cardinal Rampolla's proteges [which, surprisingly, were later granted the Purple]
[...]that the election of Cardinal Della Chiesa was intended to be an indication of a church government that was the perfect antithesis of the regime of Pius X', Four months after the death of Pius X, Msgr. Eudoxe Mignot (18421918), Archbishop of Albi, sent to Cardinal Ferrata, first secretary of state of the newly elected Pope Benedict Xv, a Memoriale in which he harshly attacked the movement of antimodernist reaction promoted by St. Pius X and asked the Holy See for a policy of 'reconciliation' with the modernists. On October 13, 1914, appointing, after Cardinal Ferrata, Cardinal Pietro Gasparri his Secretary of State, Benedict XV showed determination to change ~the orienta~ of the pontificate plan, returning to the line of 'Rampollian' government abandoned, by St. Pius X. Benedict XV, in agreement with Cardinal Gasparri, dismantled the Sodalitium pianum and held out his hand, unsuccessfully, to Buonaiuti".
Of course, I´d have to go into more detail for Rampolla´s policies as Secretary of State. But indeed, the Church was hugely affected by liberalists already in the end of the 19th century. Particularly the "easy going" Pontificate of Leo XIII. made their advance into the ranks of Prelates and (seminary) professors possible. Being forced to crawl under the carpet during the reign of Pius X., they were restored to their former "glory" by Benedict XV. practically immediately after the death of the Saint-Pope.
Known anti-modernists, on the other side (like the cited Msgr. Begnini), were persecuted.