We are discussing Study article 19, I am afraid the link given above was to next week’s study . As to their teaching on to whom the Revelation was directed, and who are the Slaves.. they now say ‘ we ‘ and ‘us’ as though it includes all the Other Sheep .
The revised Revelation Book on line said “ The apostle John, who wrote down Revelation, describes himself as such a slave. He was the last surviving apostle and one of the select spirit-anointed group of “slaves” that inherit immortal life in the heavens.”
So they have changed it, So what? They do flip flops and tweaks to teaching all the time . I doubt that anybody up the K/hall noticed.