There is no denial from traditionalists and pro SSPX bloggers.Archbishop Lefebvre made a doctrinal mistake.It was an objective mistake.He contradicted common sense and the Principle of Non Contradiction.
Archbishop Lefebvre's Open Letter to Confused Catholics posted on the blog Vox Cantoris did not know of an alternative interpretation to Vatican Council II which had the hermeneutic of continuity and no ambiguity.1
He interpreted Vatican Council II with an irrational premise and conclusion.This is modernism.The same error is repeated by Bishop Bernard Fellay, Bishop Richard Williamson.It is the same with other bishops and many priests.There is no denial from them too.They acknowledge that there is an irrational premise( there are known cases of the baptism of desire etc) and non traditional conclusion ( physically visible BOD is an explicit exception to the Feeneyite interpretation of the dogma extra ecclesiam nulla salus). With this innovation, this new premise and conclusion, a new theology was created by the liberals.It is with this new theology that Vatican Council II is interpreted by the SSPX as a break with Tradition, in particular the dogma on exclusive salvation in the Church.This was overlooked by Archbishop Lefebvre.Traditionalists are still using this modernist theology to interpret Vatican Council II as a rupture with the old ecclesiology.
The same irrational reasoning can be seen clearly in Bishop Bernard Fellay's Letter to Friends and Benefactors no.82. 2
July 31, 2016
Archbishop Lefebvre's Letter to Confused Catholics indicates he did not know of an alternative interpretation of Vatican Council II which had the hermeneutic of continuity and no ambiguity
If Salza-Siscoe admit something obvious like the baptism of desire case is not visible in 2016 then it would mean Abp.Lefebvre and Bp.Fellay made a factual error
April 23-Sept.11,2014 - still no clarification from the SSPX