Yes, well said Meg and Robert S. It all comes down to this: "a position as uncertain as it is dangerous, by stating more than Church teaching allows one to state... Let us rather wait for the Church to give official judgment on the question one day, so as to resolve it once and for all". Theologians are divided, and the ultimate judgement of the Archbishop was that it was not his place, nor ours, to apply an infallible judgement when the Church has not.
Fr Chazal put it very nicely in Contra Cekadam:"The practical behaviour of Catholics does not depend in any way on an opinion. What you say as a private person is not a dogma... and before Vatican II no dogma on this intricate, controversial and until then academic question had ever been formulated. On the contrary, with the exception of the time of Gratian, the constant unanimity was that there is no unanimity on this question".
Pere Jean (OFM Cap, Morgon) also put it nicely writing in 2016: “It is understandable that some Traditional Catholics... be deeply troubled by the scandals of Pope Francis, who seems to have surpassed his predecessors'. The sedevacantist solution may appear to them as the simplest, most logical, and best. In fact, the fundamental problem remains the same since the '70s, and the prudent attitude of Archbishop Lefebvre, in considering the risk of excessive and rash judgement, with the attendant danger of schism, should not be abandoned. In 2001, the “Small Catechism on Sedevacantism” published by Le Sel de la Terre concluded: “This is a position that has not been proven at the speculative level, and it is imprudent to hold it at a practical level, an imprudence that can bear very serious consequences.” (No. 36, p. 117) This conclusion holds as much for pope Francis as for pope John-Paul II who had kissed the Quran".
Well said. We are expected to believe that +ABL would be a sedevacantist today, due to a few things he said regarding sedevacantism and JP2. We are also expected to completely discount everything he said regarding why sedevacantism is not a good thing, which he spoke about A LOT more than the few things he said positively about sedevacantism. It's a sort of relativistic thinking.
You mention above that the conclusion of Pere Jean, OFM, Morgon, holds as much for Francis as for John-Paul II who kissed the Quran. Well, JP2 did a lot more than kiss the Quran. He instituted the inter-religious meetings at the Basilica in Assisi, a Basilica dedicated to St. Francis, and there, various religions prayed together. Even the east Timorean skull-ticklers were invited, who proceeded to slaughter a chicken on St. Clare's altar. They didn't have permission to so this, but they just assumed it would be okay.
JP2 held heretical beliefs regarding ecuмenism, which is a false ecuмenism. We are expected to forget about these serious problems with JP2, and only focus on the problems of Francis. For +ABL, JP2's actions at Assisi were shocking and disturbing, but still, he did not adopt the sedevacantist position.