FusionTheism: It definitely looks like "New Light" for the Governing Body to say that the Catholic Church was preaching the Gospel message and was obeying Jesus' Great Commission.
Before commenting, i should make this explanation. I started to study with the witnesses in the early 1950's. And I think the best description of the youthful me, is the word 'nerd.'
A Wikipedia entry describes a nerd as: " Nerd (adjective: nerdy) is a descriptive term, often used pejoratively, indicating that a person is overly intellectual, obsessive, or lacking social skills. They may spend inordinate amounts of time on unpopular, obscure, or non-mainstream activities, which are generally either highly technical or relating to topics of fiction or fantasy, to the exclusion of more mainstream activities." ( https://en.wikipedia.org/wiki/Nerd