The watchtower has other word games, too:
- the bad angels "took human bodies" before the flood, while Jesus' life was supposedly "transferred" in the womb of Marry
- the presence of Jesus is an invisible "presence"
As a general rule, everything they do not like in the bible, it becomes "invisible", it has a "spiritual fulfillment" (so, invisible) and the words just do not mean what they say, but what the gb say they mean.