And I do not understand the concern over the subjective intentions of the Pope. Worrying about whether he is a clever deceiver, in good faith or somewhere in between is immaterial. The notion that legal recognition amounts to "absorption" into conciliarism is simply a gratuitious statement without foundation. If you hold that these priests maintain their integrity, resisting errors from within the Church, juridical recognition will not in anyway alter this character of the Society. We have to look at objective reality and avoid hand-wringing about subjective dispositions. This only applies to those Catholics who recognize that there is any jurdicial authority left in the Catholic Church. For those who do not recognize this dogmatic fact, I invite you to analyze the grave implications of such an opinion.
Our Lord's Body was mutilated, bruised, beaten and in consequence His Most Precious Blood flowed copiously from his wounds, yet not a bone was broken. The Blood signifies the grace and charity extinguished from the Body of the Church through error and moral corruption, but the integrity of His bones signifies the foundation of legal jurisidiciton, i.e. authority within the mutilated Church, the Mystical Body of Christ. The moment that His Sacred Heart stopped beating upon His death, signifies the diabolical disorientation of Rome and its infestation with heretics and errant and immoral prelates, at the very heart of the Church.
Look for the resurrection of the Church which will come about from within the Body of the Church, the very thing the sedevacantist denies because their imaginary body lacks a constitutive principle and thus an entirely foreign body must be reconstituted that lacks continuity with the previous Body.