I largely agree with the effect Summorum Pontificum has had, especially with "mainstreaming" a certain critical view, even rejection, of Vatican II. 

That is why I find it all the more strange (as well as lamentable) that credible reports indicate that Pope Francis is close to an agreement with the SSPX which would re-admit them to the Church without requiring them to specifically assent to all of the teachings of Vatican II, specifically the declaration on religious liberty. If these reports result in this unfortunate circumstance, I hope those who have been critical of Benedict's decision with regard to the Latin Mass will be as critical of Francis for giving in to their agenda. After all, it was Benedict who insisted that the SSPX assent in writing to all the teachings of Vatican II, specifically religious liberty & freedom of conscience, as a non-negotiable condition of their re-admission (which of course they would not do).