If we assume that +Vigano is sincere and not an infiltrator, then his conditional consecration provided him with the full effects of his office and we are witnessing the power of grace…
Yes. When people were skeptical of how +Vigano could have spent all those years in the Conciliar Church and then suddenly converted, I hypothesized that it was because when he went into hiding after the McCarrick incident, he took advantage of the
Motu to start offering the Tridentine Mass, and we know that the Mass is the best teacher of the faith. Given the time to pray and offer the Mass, this led to his conversion to Traditional Catholicism. +Vigano later confirmed that it was exactly what happened.
In terms of his potentially being an infiltrator, I always ask the old question of
cui bono? What nefarious purpose would it have served for +Vigano to go through the process he's gone through. Some speculated that he would ordain dubious priests ... but then he received conditional consecration. Some speculated that he's be roping people into the Conciliar Church. It's been the opposite. He's actually been gradually leading conservative Novus Ordite types toward Traditional Catholicism and away from the Conciliar Church. Given his fame / notoriety, due to the McCarrick situation, and then his letter to Trump, he caught the attention of Trad, Inc. and gained a following. +Vigano is a brilliant man, and was trained as a diplomat, so he's well aware of the influence he has. He takes gradual steps because he doesn't want to "lose" anybody by going from 0 to 60 instantly. Everything he puts out is well thought through, every word of it, for its potential impact and influence. He's undermining the major premise of many Conciliars who believe that V2 was OK and good, but has just been abused by the likes of Bergoglio. He referred to the people who think this was as "Montinians". More and more you start seeing conservative Novus Ordites questioning V2 itself, which has always been considered
verboten.