For Fisherman and others following the saga, here is some information that might explain the relaxation of the WT persecution in Cuba:
Castro was baptized and raised a Roman Catholic as a child but did not practice as one. In Oliver Stone's documentary Comandante, Castro states "I have never been a believer", and has total conviction that there is only one life.[2] Pope John XXIII excommunicated Castro in 1962 after Castro suppressed Catholic institutions in Cuba.[3] Castro has publicly criticized what he sees as elements of the Bible that have been used to justify the oppression of both women and people of African descent throughout history.[4]
In 1992, Castro agreed to loosen restrictions on religion and even permitted church-going Catholics to join the Communist Party of Cuba. He began describing his country as "secular" rather than "atheist".[5] Pope John Paul II visited Cuba in 1998, the first visit by a reigning pontiff to the island. Castro and the Pope appeared side by side in public on several occasions during the visit. Castro wore a dark blue business suit rather than fatigues in his public meetings with the Pope and treated him with reverence and respect.[6] In December 1998, Castro formally re-instated Christmas Day as the official celebration for the first time since its abolition by the Communist Party in 1969.[7] Cubans were again allowed to markChristmas as a holiday and to openly hold religious processions. The Pope sent a telegram to Castro thanking him for restoring Christmas as a public holiday.[8
https://en.wikipedia.org/wiki/Religious_views_of_Fidel_Castro