I absolutely think JWs would do this. Regardless if the leadership claims credit or condemns it, it's exactly the kind of myopic self aggrandizing circle jerk that disrespects others' culture and beliefs that the superstitious rank and file would partake in.
As far as leadership claiming credit, of course they're not going to, as that would open them up to financial responsibility. What they do is promote a culture that devalues, demonizes, and lies about history and world culture, and encourages this sort of bigotry. You can bet your arse that the rank and file are going to take actions consistent with those qualities.