When you stop and consider the the reasons for using these illustrations, it is purely to put the wind up JWs who might start thinking for themselves. The Watchtower want zombies who are kept subservient through guilt and fear.
However, if a JW did give some thought to it. . .
1/JW org says that all other religions contaminate true worship. Is it not easy to spot that the illustration and its language is a crude fear mongering ploy to stop witnesses thinking and mixing with non JWs?
2/ With a bit of reasoning on provable fundamentals (which JWs are discouraged from at all costs) then it becomes apparent that "true religion" like its bedfellow "true worship" are baseless constructs employed by the JW org to frame the religious vision for their members. In the real world they do not exist! And who says humans need to worship anything ever? Only religious cults.
Worship is not precious, its an appalling waste of valuable time and it is JW org who contaminates people's minds not other religions.