The title itself is lame. Outsiders are going to immediately ponder “I’ve never heard of a religion called Warwick”. Even older ex JWs might have a difficult time making the connection as the Warwick facility is rather new.
Whilst it is not unheard of regarding outsiders being allowed a tour, in those cases a handler is assigned to them and the idea is to give an informal witness. A handler would have almost immediately picked up on the fact that those two were not curious observers but rather staunch critics who were there to film for a future video making fun of and critiquing the exhibits.