I think the die-hard devotees of Fatima, the ones who insist on maintaining that some secrets still exist and turn the whole thing into a conspiracy on what has been left untold, invite continued criticism of the apparitions. Specifically, many still maintain that “Russia was not consecrated properly” because for some reason, the last 7 or 8 popes have refused to do what Mary specifically told them. Furthermore, the Church considers this a closed matter and that the consecration has been indeed performed.
However, it seemingly benefits a set of folks to keep this conspiracy alive, because anytime something seems amiss in the Church or the world, the default answer is “It’s because the Pope never consecrated Russia to the Immaculate Heart of Mary according to Our Lady of Fatima!!!” It just never stops with some of them. When conspiracies like this persist, they just invite criticism from the secular world.
The core message of Fatima is prayer and repentance. Unfortunately, in my opinion, I think some leaders in the Church used the message in a Western-influenced political manner to be used against the Russian Orthodox Church in the following decades after the apparitions were reported. And even more unfortunately, the core message of Fatima has been obscured by continuing conspiracies which reduce the message to a type of cloak and dagger game within the Church. So as long as the conspiracies continue, so will the attacks against the apparitions.